• WordNet 3.6
    • n obverse the side of a coin or medal bearing the principal stamp or design
    • n obverse the more conspicuous of two alternatives or cases or sides "the obverse of this issue"
    • ***
Webster's Revised Unabridged Dictionary
    • Obverse Anything necessarily involved in, or answering to, another; the more apparent or conspicuous of two possible sides, or of two corresponding things. "The fact that it [a belief] invariably exists being the obverse of the fact that there is no alternative belief."
    • a Obverse ŏb*vẽrs" Having the base, or end next the attachment, narrower than the top, as a leaf.
    • Obverse The face of a coin which has the principal image or inscription upon it; -- the other side being the reverse.
    • ***
Century Dictionary and Cyclopedia
    • obverse Turned toward (one); facing: opposed to reverse, and applied in numismatics to that side of a coin or medal which bears the head or more important inscription or device.
    • obverse In botany, having the base narrower than the top, as a leaf.
    • n obverse In numismatics, the face or principal side of a coin or medal, as distinguished from the other side, called the reverse. See numismatics, and cuts under maravedi, medallion, and merk.
    • n obverse Hence A second aspect of the same fact; a correlative proposition identically implying another.
    • n obverse Specifically, in logic, the contranominal of the inverse of a proposition.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Obverse ob-vėrs′ turned towards one: bearing the head, as one face of a coin—opp. to Reverse: a second or complemental aspect of the same fact, a correlative proposition identically, implying another:
    • n Obverse the side of a coin containing the head, or principal symbol
    • adj Obverse ob-vėrs′ (bot.) having the base narrower than the top
    • ***


Webster's Revised Unabridged Dictionary
L. obversus, p. p. of obvertere,. See Obvert
Chambers's Twentieth Century Dictionary
L. obversusob, towards, vertĕre, to turn.


In literature:

The inscription on this side (p. 251) seems to fill the gap upon the obverse, OWENUS DEI GRATIA ... WALLIAE.
"Henry of Monmouth, Volume 1" by J. Endell Tyler
The one was merely the obverse of the other.
"The Daughters of Danaus" by Mona Caird
The bust of John Paul Jones, on the obverse of this medal, is from a plaster cast by Houdon, the celebrated sculptor.
"The Medallic History of the United States of America 1776-1876" by J. F. Loubat
This name was given them from the legend, on the obverse, IAM.
"The Works of John Knox, Vol. 1 (of 6)" by John Knox
"Face to Face with Kaiserism" by James W. Gerard
This truth is likewise testified to on the obverse aspect of psychology.
"Mind and Motion and Monism" by George John Romanes
The obverse of man's tendency to follow a lead is, of course, his tendency to take it.
"Human Traits and their Social Significance" by Irwin Edman
And the love of praise, with its obverse, the fear of blame, has ever been one of the strongest motives to human conduct.
"Socialism: Positive and Negative" by Robert Rives La Monte
Nor did it mend matters that her handsome face and Philip's were on the obverse.
"The Continental Monthly, Vol. 6, No. 6, December 1864" by Various
In the third column of the obverse or front side he read the words: 'On the mount Nizir the ship stood still.
"Chaldea" by Zénaïde A. Ragozin
The first of these has, obverse, an eagle tearing a ram, on a shield; reverse, a thunderbolt.
"The New England Magazine Volume 1, No. 6, June, 1886, Bay State Monthly Volume 4, No. 6, June, 1886" by Various
It is a good omen if the coin falls with the obverse upwards.
"Omens and Superstitions of Southern India" by Edgar Thurston
On the obverse of Fig.
"Sea Monsters Unmasked and Sea Fables Explained" by Henry Lee
The one is the obverse of the other.
"A Grammar of Freethought" by Chapman Cohen
A little later, to these exquisite delights of the moment, an ugly obverse presents itself.
"Equatorial America" by Maturin M. Ballou
It represents on the obverse Tethmosis (Thothmes) II.
"Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5" by Various
Envy is the obverse of pride.
"The Moral Instruction of Children" by Felix Adler
It is the obverse of the medal that piques curiosity.
"Unicorns" by James Huneker
But there is an obverse here.
"Historic Fredericksburg" by John T. Goolrick
This comes out clearly in the obverse of what has just been said.
"Ethics" by John Dewey and James Hayden Tufts

In news:

Cash and Dylan, a Columbia Records superstar in the 1970s–is something of the obverse of Mr Cash .
The coin's front, or obverse, is unchanged, with a likeness of the President.
This Thursday, April 19, 2012, shows the obverse side of a rare 1792 experimental penny on display in Schaumburg, Ill.
6-1/2 Carbon steel clip point blade, cast aluminum handle with simulated stag texturing, marked MURPHY COMBAT on the obverse side and U.S.A. on the reverse side.
This Thursday, April 19, 2012 photo shows the obverse side of a rare penny on display in Schaumburg, Ill.

In science:

Obverse that many phenomena in the theory of stochastic processes, finance and hydrology are recently described through fractional evolution equations, see [6, 7, 30, 33] and the references therein.
On fractional powers of generators of fractional resolvent families
Type II error, except for one definition below (viii), has usually been treated instead in terms of its obverse, power.
Recent developments towards optimality in multiple hypothesis testing
As long as the strands are coloured normally, the reverse (so viewed) is just the colour-complement of the obverse and so is of no particular interest (‘obverse’ and ‘reverse’ rather than ‘front’ and ‘back’ because of the arbitrariness of which is which, as of a coin).
Isonemal prefabrics with only parallel axes of symmetry
Another unique state with three distinct Ma jorana spinors – constructed through a permutation symmetric superposition of two up qubits and one down qubit (W state) and its obverse state ( ¯W) exhibits genuine three-party entanglement, which is robust under loss of a qubit.
Interconvertibility and irreducibility of permutation symmetric three qubit pure states
However the reef knot is the trefoil connect summed with the reverse of its obverse, and so is slice.
A Second Order Algebraic Knot Concordance Group
Obversely, if there is a point P ∈ Ω with M(P ) > 1 then M(z ) > 1 for all z ∈ Ω.
The Kobayashi metric, extremal discs, and biholomorphic mappings
Obversely, if M(P ) 6= 1 at some point then, by contrapositive reasoning in the last paragraph, it cannot be that M equals 1 at any point.
The Kobayashi metric, extremal discs, and biholomorphic mappings