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Definition of: bivalve
(bī′valv′) noun
1. Zool. An acephalous mollusk having a shell of two lateral valves.
2. Bot. A seed vessel that splits into two parts, as a pea pod.
—adjective Having two valves, as a mollusk or seed vessel: also bi′valved′, bi·val·vous (bī·val′vəs), bi·val·vu·lar (bī·val′·vyə·lər).
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