/ Dictionary / Index S spider mite: Meaning and Definition of Find definitions for: spi'der mite" Pronunciation: [key] any of numerous, variously colored web-spinning mites of the family Tetranychidae, many of which are pests of garden plants and fruit trees. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. spiderling spider monkey Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language