/ Dictionary / Index P psylla: Meaning and Definition of Find definitions for: psyl•la Pronunciation: (sil'u), [key] — n. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: psylla (Thesaurus) psykter psyllid yellows Related Content Daily Word Quiz: ostracize Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language