‖n. [ NL., fr. L. pyrus a pear. ] (Zool.) A genus of large marine gastropods having a pear-shaped shell. It includes the fig-shells. See Illust. in Appendix. [ 1913 Webster ]
‖n. [ L. pyrus, or better pirus, pear tree. ] (Bot.) A genus of rosaceous trees and shrubs having pomes for fruit. It includes the apple, crab apple, pear, chokeberry, sorb, and mountain ash. [ 1913 Webster ]
a. [ Pyro- + L. uva a grape. ] (Chem.) Pertaining to, or designating, an acid (called also pyroracemic acid) obtained, as a liquid having a pungent odor, by the distillation of racemic acid. [ 1913 Webster ]
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