/ Dictionary / Index S syphiloid: Meaning and Definition of Find definitions for: syph•i•loid Pronunciation: (sif'u-loid"), [key] — adj. resembling syphilis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. syphilitic syphon Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language