Tridacna
[ trih-dak-nuh ]
/ trɪˈdæk nə /
Save This Word!
noun
a genus of giant clams inhabiting reefs in the South Pacific, attaining a diameter of 4 feet (1.2 meters) or more, and weighing over 500 pounds (227 kilograms).
QUIZ
WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?
Smoothly step over to these common grammar mistakes that trip many people up. Good luck!
Question 1 of 7
Fill in the blank: I can’t figure out _____ gave me this gift.
Origin of Tridacna
First recorded in 1770–80; from New Latin, noun use of feminine of Latin tridacnus “requiring three bites,” from Greek trídaknos , equivalent to tri- “three” + dákn(ein) “to bite” + -os adjective suffix; see tri-
Words nearby Tridacna
tricuspid valve, tricyanic acid, tricycle, tricyclic, trid., Tridacna, tridactyl, tridarn cupboard, trident, tridentate, Tridentine
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023