te|re|do

te|re|do «tuh REE doh», noun, plural -dos, -di|nes «-duh neez».

a small, wormlike marine clam that bores into and destroys the wood of ships, piers, and other wood surfaces exposed to salt water; shipworm.

╂[< Latin terēdo < Greek terēd < teírein to rub away, weaken, bore]