/ Dictionary / Index M MOSFET: Meaning and Definition of Find definitions for: MOSFET Pronunciation: (mos'fet"), [key] — n. metal oxide semiconducter field-effect transistor. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mosey mosh Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language