locus

Definitions

  • WordNet 3.6
    • n locus the set of all points or lines that satisfy or are determined by specific conditions "the locus of points equidistant from a given point is a circle"
    • n locus the specific site of a particular gene on its chromosome
    • n locus the scene of any event or action (especially the place of a meeting)
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Webster's Revised Unabridged Dictionary
    • Locus A place; a locality.
    • Locus (Math) The line traced by a point which varies its position according to some determinate law; the surface described by a point or line that moves according to a given law.
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Century Dictionary and Cyclopedia
    • n locus A place; spot; locality.
    • n locus In anatomy, some place, specifically named by a qualifying term.
    • n locus In mathematics, a curve considered as generated by a moving point, or a surface considered as generated by a moving line; the partly indeterminate position of a point subject to an equation or to two equations in analytical geometry; a curve considered as generated by its moving tangent or by a moving curve of which it is the envelop; any system of points, lines, or planes defined by general conditions, and, in general, partly indeterminate.
    • n locus In optics, the figure formed by the foci of a set of pencils of converging or diverging rays; an optical image.
    • n locus A place or passage in a writing; in the plural, a collection of passages, especially from the Scriptures or other ancient writings, methodically selected and arranged as bearing upon some special topic or topics of study; a catena; a book or work consisting of such a selection.
    • n locus The words and figures, in the signature to a quotation or in a reference to a passage, which designate the particular place or division of the work (book, chapter, page, section, verse, line, etc.) where the passage in question occurs. The locus properly follows the title of the work or piece cited, and the title follows the name of the author.
    • n locus In geometry, the place of all the points, and of only those points, which satisfy a given condition.
    • locus To stupefy with drink.
    • n locus Something which stupefies, as liquor.
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Chambers's Twentieth Century Dictionary
    • n Locus lō′kus (math.) the curve described by a point, or the surface generated by a line, moving in a given manner: a passage in a writing
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Etymology

Webster's Revised Unabridged Dictionary
L., place. Cf. Allow Couch Lieu Local
Chambers's Twentieth Century Dictionary
L.

Usage

In literature:

Names give abstract meanings a physical locus and body.
"Democracy and Education" by John Dewey
The "locus classicus" seems to be Plut.
"Hellenica" by Xenophon
It begins to look to me as though life might be a kind of locus, whose commanding equation we call God.
"Where the Blue Begins" by Christopher Morley
I have no locus standi.
"The Money Master, Complete" by Gilbert Parker
Nam Metello virtus militum erat, locus adversus, Jugurthae alia omnia praeter milites opportuna.
"De Bello Catilinario et Jugurthino" by Caius Sallustii Crispi (Sallustius)
Locus Castorum, ii 24.
"Tacitus: The Histories, Volumes I and II" by Caius Cornelius Tacitus
Castra autem non oppugnavit quia milites erant defessi et locus difficilis.
"Latin for Beginners" by Benjamin Leonard D'Ooge
The locus of event-particles covered by the station of P in d as an abstractive element is the station of P in d as a locus.
"The Concept of Nature" by Alfred North Whitehead
We had no "locus standi" for complaining of this change and did not complain.
"Current History, A Monthly Magazine" by New York Times
Where the ore is wider than the necessary stoping width, the sample should be regulated so as to show the possible locus of values.
"Principles of Mining" by Herbert C. Hoover
The movement towards actual writing, why the mood descended on whom when it did at its precise locus in time.
"The Land of Look Behind" by Paul Cameron Brown
Something real, something familiar, something that identified this poor wandering soul and gave it a locus.
"The Deaves Affair" by Hulbert Footner
By means of this expression we may trace the locus of a band of given order as b varies.
"Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4" by Various
Nec mora, condicitur pugnae locus, eidemque stata temporis meta praefigitur.
"Beowulf" by R. W. Chambers
Locus of the Point of Maximum Motion 286 22.
"The Glaciers of the Alps" by John Tyndall
Netley Abbey ought, it seems, to be called Letley Abbey, the Latin name being Laetus Locus, or Pleasant Place.
"Rural Rides" by William Cobbett
The locus, therefore, is 25 units to the right or to the left of vermilion, that is, either about 58 or 8 units from the yellow locus.
"Sex-linked Inheritance in Drosophila" by Thomas Hunt Morgan
After all, the life of the universe is but the locus and extension of ours.
"Three Philosophical Poets" by George Santayana
A curve thus appears as generated either by points, and then we call it a "locus," or by lines, and then we call it an "envelope.
"Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6" by Various
The locus of the so-called parallelism is, we are told, the cortex of the brain.
"Spencer's Philosophy of Science" by C. Lloyd Morgan
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In poetry:

W'y, I git my fancy focussed on the past so mortal plain
I kin even smell the locus'-blossoms bloomin' in the lane;
And I hear the cow-bells clinkin' sweeter tunes 'n "money musk"
Far the lightnin'-bugs a-blinkin'and a-dancin'in the dusk.
"Romancin'" by James Whitcomb Riley

In news:

Locus magazine columnist Bisson pays homage to the beat poets as he embraces the social atmosphere of the late '60s and early '70s in staccato, pared-down prose that suits the novel's coming-of-age narrative.
At night, Lilienblum Street is transformed from a subdued shopping lane to a crowded locus of revelers.
On the eve of Election Day Locus Focus takes a look at how real democracy involves much more than casting an occasional vote.
Madeline Locus , Dax Hill and Leah Stevens Wrap Up Meet With Wins.
AUSTIN, Texas, August 4 THREE swimmers, Madeline Locus , Dax Hill and Leah Stevens, won their third titles of the meet tonight as the American Long Course Championships came to a close on the campus of the University of Texas.
Researchers Discover Genetic Locus Linked to Schizophrenia Risk.
A team of scientists uncovered evidence of a novel genetic locus that appears to increase the risk of developing schizophrenia.
My grandson collecting Locus shells and displaying.
The Locus Click to enlarge.
Consider it part of the paradox of post-modernism that Future Music, a store specializing in vintage instruments, could serve as the locus for some of L.A.'s most forward-thinking musicians.
Identification of variable simple sequence motifs (VSSMs) in 19q13 2-qter: markers for the myotonic dystrophy locus.
Parasol 's is famous for its roast beef po-boys and for serving as the locus of a riotous St Patrick's Day block party.
At the end of this century's first decade, we can observe how the locus of power has shifted in world politics.
CHARLOTTE — The DNC, like the RNC before it, is a locus for stupid hats .
Galicia is a white-wine locus these days, and the Benito Santos is a great example why.
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In science:

Here the fraction of defective genes in the population is computed for each locus.
Random deaths in a computational model for age-structured populations
The cuts are set at reasonable values designed to run close to the stellar locus without introducing a large fraction of stars.
QSOs and Absorption Line Systems Surrounding the Hubble Deep Field
XF ⊂Φ−1 (F ′ ) where the sum is over the components X of the fixed locus that are contained in Φ−1 (F ′ ) and α is any equivariant cohomology class on M (see or ).
Some applications of localization to enumerative problems
W ∼= Cm and Zr is the locus of maps of rank ≤ r .
Some applications of localization to enumerative problems
On the right side, each fixed locus belongs to Z1 ⊂ P(Hom(W, V )) as i = pi × P(V ) where pi ∈ P(W ∗) is the fixed point hxi i.
Some applications of localization to enumerative problems
Moreover, the m-pointed Kontsevich-Manin space is one of the components of the fixed-locus for the torus action.
Some applications of localization to enumerative problems
Note, along the locus L, we may set t1 = √x and s1 = −√x, since it respects t, s1 = −x.
Integrable Lattices: Random Matrices and Random Permutations
But now eX is given by wy = tα along its singular locus, where we may apply Lemma 3.2 to obtain the following corollary.
A Simple Proof that Rational Curves on K3 are Nodal
For any n this configuration has the geometrical properties expected of n superimposed L5-branes contained in the locus of points describing a 4-sphere.
M(atrix) Theory: Matrix Quantum Mechanics as a Fundamental Theory
As usual we always have trivial fixed points given by ϕ1,0 = 0 and the fixed point locus is the moduli space M of anti-self-dual connections.
Higgs Bundles and Four Manifolds
To be precise, geometric invariant theory tells us that the algebra of invariants ⊕k∈ZH 0 (Y , η⊗k )G is finitely generated with positive Its pro j is denoted G\\Y ss , because a point of this pro j can degree generators. be interpreted as a minimal G-orbit in the semistable locus Y ss ⊂ Y .
Compactifications defined by arrangements I: the ball quotient case
It is clear that the data do not follow the model locus.
A Synthesis of Data from Fundamental Plane and Surface Brightness Fluctuation Surveys
This is the coincident root locus in the title and the principal ob ject of study in this paper.
On equations defining coincident root loci
The Coincident Root locus Xλ is defined to be the scheme–theoretic image of fλ .
On equations defining coincident root loci
The locus is closed in P Symd V since fλ is a pro jective morphism, and it is reduced since Yλ is.
On equations defining coincident root loci
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