/ Dictionary / Index M mylonite: Meaning and Definition of Find definitions for: my•lo•nite Pronunciation: (mī'lu-nīt", mil'u-), [key] — n. a rock that has been crushed and sheared to such an extent that its original texture has been destroyed. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mylohyoid my-my Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language