ligamental area
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Escutcheon — Es*cutch eon, n. [OF. escusson, F. [ e]cusson, from OF. escu shield, F. [ e]cu. See {Esquire}, {Scutcheon}.] 1. (Her.) The surface, usually a shield, upon which bearings are marshaled and displayed. The surface of the escutcheon is called the… … The Collaborative International Dictionary of English
Escutcheon of pretense — Escutcheon Es*cutch eon, n. [OF. escusson, F. [ e]cusson, from OF. escu shield, F. [ e]cu. See {Esquire}, {Scutcheon}.] 1. (Her.) The surface, usually a shield, upon which bearings are marshaled and displayed. The surface of the escutcheon is… … The Collaborative International Dictionary of English
bourrelet — n. [F. bourrelet, circular pad] . A ridgelike prominence or rounded edge. 1. (ARTHROPODA: Insecta) see parameres. 23. (ECHINODERMATA) A raised prominence on the interambulacral plates at the edge of the mouth. 3. (MOLLUSCA: Bivalvia) A ligamental … Dictionary of invertebrate zoology
umbonal cavity — (MOLLUSCA: Bivalvia) 1. Part of the valve interior which lies within the umbo and under the hinge plate. 2. In oysters, that part of the left valve interior lying in the umbonal region beneath the ligamental area … Dictionary of invertebrate zoology
