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bivalve

bivalve is defined in Webster's Unabridged Dictionary (1913) with 2 senses. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.(Bot.) A pericarp in which the seed case opens or splits into two parts or valves.
  2. 2.Having two shells or valves which open and shut, as the oyster and certain seed vessels.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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