/ Dictionary / Index S subspecialty: Meaning and Definition of Find definitions for: sub•spe•cial•ty Pronunciation: (sub-spesh'ul-tē, sub'spesh"-), [key] — pl. -ties. a lesser or minor specialty: a cinematographer with a subspecialty of portrait photography. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. subspace topology subspecies Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language