• WordNet 3.6
    • v subtract take off or away "this prefix was subtracted when the word was borrowed from French"
    • v subtract make a subtraction "subtract this amount from my paycheck"
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: Ivory soap slogan "99-44/100% Pure" was cleverly invented by Harley Proctor who with the help of chemists determined that Ivory soap was only 56/100 pure. Proctor simply subtracted 56 from 100 and came up with "99-44/100% Pure"
    • v. t Subtract To withdraw, or take away, as a part from the whole; to deduct; as, subtract 5 from 9, and the remainder is 4.
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: Except for 2 and 3, every prime number will eventually become divisible by 6 if you either add or subtract 1 from the number. For example, the number 17, plus 1, is divisible by 6. The number 19, minus 1, is also divisible by 6
    • subtract To withdraw or take away, as a part from a whole; deduct.
    • subtract Synonyms Subtract, Deduct. See deduct.
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: If you take any number, double it, add 10, divide by 2, and subtract your original number, the answer will always be 5.
    • v.t Subtract sub-trakt′ to take away a part from the rest: to take one number or quantity from another to find their difference
    • ***


  • John Bentley
    John Bentley
    “What is high finance? It?s knowing the difference between one and ten, multiplying, subtracting and adding. You just add noughts. It?s no more than that.”
  • Thomas Brackett Reed
    Thomas Brackett Reed
    “They never open their mouths without subtracting from the sum of human knowledge.”
  • Benjamin Franklin
    “Your net worth to the world is usually determined by what remains after your bad habits are subtracted from your good ones.”
  • Alexander Solzhenitsyn
    “Everything you add to the truth subtracts from the truth.”


Webster's Revised Unabridged Dictionary
L. subtractus, p. p. of subtrahere, to draw from beneath, withdraw, remove; sub, under + trahere, to draw. See Trace (v. t.), and cf. Substract
Chambers's Twentieth Century Dictionary
L. sub, under, trahĕre, tractum, to draw away.


In literature:

What is meant by adding or subtracting in this connection?
"Social Rights and Duties, Volume I (of 2)" by Sir Leslie Stephen
She was careful always to subtract a month from the remainder, for the summer holidays.
"The Rainbow" by D. H. (David Herbert) Lawrence
Or 'Think of an animal, a bird, or a fish, and to that add So-and-so, and subtract So-and-so,' and this results in a portrait.
"The Confessions of a Caricaturist, Vol. 1 (of 2)" by Harry Furniss
The subtraction is performed using 1's complement arithmetic.
"Preliminary Specifications: Programmed Data Processor Model Three (PDP-3)" by Digital Equipment Corporation
The figures would be added up, and subtracted, and divided.
"The Curse of Education" by Harold E. Gorst
The addition and subtraction of numbers under ten are made very much simpler by the use of the didactic material for teaching lengths.
"Dr. Montessori's Own Handbook" by Maria Montessori
And Isidro proceeded to subtract stealthily a skirt and shawl from wooden pegs set in the adobe wall where Valencia slept.
"The Treasure Trail" by Marah Ellis Ryan
Similarly, one point is subtracted for every three degrees below 70 deg.F.
"The Automobile Storage Battery" by O. A. Witte
Subtracting this from the pretended gain, $6914,67 - 1949,98, gives 4964,69.
"The Prison Chaplaincy, And Its Experiences" by Hosea Quinby
The consciousness of that subtracted the brightness from the day, the pleasure from the visit.
"The Paliser case" by Edgar Saltus
We may either add or subtract.
"Sex=The Unknown Quantity" by Ali Nomad
Subtract this profit from your original cost (6.00) and figure your sugar cost at 5.00.
"About sugar buying for Jobbers" by B. W. Dyer
When certain partitioned areas have been subtracted this means a space of about six by three feet per man.
"The Note-Book of an Attache" by Eric Fisher Wood
Rick checked Baltimore data for the date, subtracted quickly, and glanced at his watch.
"The Flying Stingaree" by Harold Leland Goodwin
The subtraction of a powerful stimulus will suffice to account for this event.
"Vegetable Diet: As Sanctioned by Medical Men, and by Experience in All Ages" by William Andrus Alcott
Sally was beginning to add, subtract, divide, and multiply.
"Maid Sally" by Harriet A. Cheever
His error consisted in his subtracting 1776 from 1790, and saying twenty-four years instead of fourteen.
"Discussion on American Slavery" by George Thompson
In the Roman circus, the Christian, once subtracted from life, was subtracted also from evil.
"Historia Amoris: A History of Love, Ancient and Modern" by Edgar Saltus
A third mountain system grew, not by addition, but by subtraction.
"Earth and Sky Every Child Should Know" by Julia Ellen Rogers
For the retarded stream the only difference is that we must subtract R from at, and that the limits of x are 0 and +h.
"Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4" by Various

In poetry:

Only you and me
multiplied and divided
added and subtracted
remain the same…
"Another Kind of Mathematics" by Nichita Stanescu
We hunt the cause of ruin, add,
Subtract, and put ourselves in pawn;
For all our scratching on the pad,
We cannot trace the error down.
"The Reckoning" by Theodore Roethke
"The result we proceed to divide, as you see,
By Nine Hundred and Ninety Two:
Then subtract Seventeen, and the answer must be
Exactly and perfectly true.
"The Hunting Of The Snark " by Lewis Carroll
The most which your bounty from you can subtract
Is an apple, a sweetmeat, a toy;
For so easy a virtue, so trifling an act,
You are paid with an innocent joy.
"Charity" by Charles Lamb
Freeman! thy neighbour also has liberties;
This may subtract his rights from thy heritage,--
But Freedom without moderations
Were but the licence of pirate nations.
"Freedom (In Alcaics.)" by Martin Farquhar Tupper
What though the moon on Trevi's fount,
Whilst we together drink, doth shine,
Can it the rural miles remount,
Or I subtract from mine?
Whilst Time hath scarce begun to count
The pleasant paths of thine.
"Fontana Di Trevi" by Alfred Austin

In news:

Reducing healthcare cost through subtraction of care.
It's subtraction by additions for Angels.
Trading Hunter is addition by subtraction .
Finally, a man of subtraction .
He is a man of subtraction .
INTERVIEWS Jens Lekman Adds Through Subtraction in Bittersweet 'I Know What Love Isn't' Video.
Addition by subtraction for the Wizards.
Lowe's seeks addition by subtraction .
Subtraction and Counting Division.
Embracing Both Additive and Subtractive Manufacturing.
State English learner program is ' subtractive education'.
Are you an additive person or a subtractive one.
Subtractive Plus Additive Equals More Than.
Gone are the addition and subtraction drills, the mind-numbing handouts.
10 am to 6 pm Wednesday (subtracts two hours.

In science:

Such background subtraction strategies have been successfully used in accelerator neutrino experiments.
A CsI(Tl) Scintillating Crystal Detector for the Studies of Low Energy Neutrino Interactions
But note that no infinite background subtraction was needed.
Generalized entropy and Noether charge
Let us compute the subtracted two-point function G sub σ = π and θ = θ.
Worldsheet and Spacetime Properties of p-p' System with B Field and Noncommutative Geometry
In particular, it subtracts an infinite contribution from the energy.
IIA/B, Wound and Wrapped
II string theory, the total energy of the combined brane-string system is thus divergent, but becomes finite after the usual subtraction.
IIA/B, Wound and Wrapped
The supernova spectra have been background subtracted.
SPIRAL Phase A: A Prototype Integral Field Spectrograph for the AAT
The mean level is determined by first subtracting the pre-burst intensity.
Oscillations During Thermonuclear X-ray Bursts
One has to subtract also the flow from the original field value (retrace it back to the source).
Susceptibility and Percolation in 2D Random Field Ising Magnets
In the minimal subtraction scheme only pole terms appearing in vertex functions are subtracted.
Critical properties of random anisotropy magnets
It is also possible that the galaxies are being slightly over-subtracted to a degree not clearly visible in the subtractions.
Rates and Progenitors of Type Ia Supernovae
For the subtraction steps, the PSF differences between the co-added images need to be matched so that objects that are unchanged in the epochs of observations subtract to zero.
Rates and Progenitors of Type Ia Supernovae
Also, note that if y2 was equal to one before the subtraction, then after the subtraction g ≡ 0 and again the conclusion of the theorem holds trivially, so we may as well assume y2 6= 1.
Random Cluster Models on the Triangular Lattice
We work with the NJL model for a while, but the results will be found to be model-independent by a subtraction of the Thouless criterion: By this subtraction scheme, the model dependence is reduced only to the critical temperature Tc0 .
Extensive study of phase diagram for charge neutral homogeneous quark matter affected by dynamical chiral condensation -- unified picture for thermal unpairing transitions from weak to strong coupling --
It consisted in bias subtraction, flat-fielding and sky subtraction.
On-axis spectroscopy of the host galaxies of 20 optically luminous quasars at z~0.3
Here the subtraction of yj (0) in each term of the sum reflects the subtraction of f (0+ ) in formula (B.6) for the Caputo fractional derivative.
Discrete random walk models for space-time fractional diffusion