obverse

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obverse

1. (of certain plant leaves) narrower at the base than at the top
2. Logic a categorial proposition derived from another by replacing the original predicate by its negation and changing the proposition from affirmative to negative or vice versa, as no sum is correct from every sum is incorrect
References in periodicals archive ?
In addition, the $5 gold and $1 silver coins will be the first "curved" coins minted and issued by the United States Mint, with the reverses (tail sides) being convex to more closely resemble a baseball and the obverses being concave to provide a more dramatic design.
WASHINGTON, April 11, 2013 /PRNewswire-USNewswire/ -- The United States Mint today announced the opening of its Baseball Coin Design Competition that will culminate in the Department of the Treasury's selection of the image for the obverse (heads side) of the 2014 National Baseball Hall of Fame Commemorative Coins.
WASHINGTON, March 28, 2013 /PRNewswire-USNewswire/ -- In two short weeks, the United States Mint will open a coin design competition that will culminate in the Secretary of the Treasury's selection of the image for the obverse (heads side) of the 2014 National Baseball Hall of Fame Commemorative Coins.