/ Dictionary / Index S sialid: Meaning and Definition of Find definitions for: si•a•lid Pronunciation: (sī'u-lid), [key] — n. any neuropterous insect of the family Sialidae, comprising the alderflies. —adj. belonging or pertaining to the family Sialidae. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sialagogue Sialkot Related Content Daily Word Quiz: jaundice Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language