/ Dictionary / Index T thick-tailed ray: Meaning and Definition of Find definitions for: thick'-tailed ray' Pronunciation: (thik'tāld"), [key] any ray of the order Rajiformes, having a relatively thick, fleshy tail, including the guitarfishes and the skates. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. thick-skulled thick-witted Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language