obverse

n. face of a coin; reversal; counterpart; main side

See Obversion for the use of "obverse" in logic. The term obverse, and its opposite, reverse, describe the two sides of units of currency and many other kinds of two-sided objects, most often in reference to coins, but also to flags, medals, drawings, old master prints and other works of art. The terms may respectively be interchanged with the more casual but less precise terms "front" and "back," or (for coins only) "heads" and "tails." In many such areas other than coins, reverse is much more commonly used than obverse, and front and reverse may also be used. The terms can also describe the front and back of a flag (see Flag terminology).   Recto and verso are the equivalent terms for front and back used for the pages of books, especially illuminated manuscripts, and also often for prints and drawings.
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Noun
1. the more conspicuous of two alternatives or cases or sides; "the obverse of this issue"
(hypernym) option, alternative, choice
2. the side of a coin or medal bearing the principal stamp or design
(antonym) reverse, verso
(hypernym) side
(hyponym) head
(part-holonym) coin

(a.)
The face of a coin which has the principal image or inscription upon it; -- the other side being the reverse.
  

(a.)
Having the base, or end next the attachment, narrower than the top, as a leaf.
  

(a.)
Anything necessarily involved in, or answering to, another; the more apparent or conspicuous of two possible sides, or of two corresponding things.
  

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