| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024Tri•dac•na (tri dak′nə),USA pronunciation n. - a genus of giant clams inhabiting reefs in the South Pacific, attaining a diameter of 4 ft. (1.2 m) or more, and weighing over 500 lb. (227 kg).
- Greek trídaknos, equivalent. to tri- tri- + dákn(ein) to bite + -os adjective, adjectival suffix
- Neo-Latin, noun, nominal use of feminine of Latin tridacnus requiring three bites
- 1770–80
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