/ Dictionary / Index P Pisces: Meaning and Definition of Find definitions for: Pis•ces Pronunciation: (pī'sēz, pis'ēz), [key] — gen. Pis•ci•um the Fishes, a zodiacal constellation between Aries and Aquarius. the twelfth sign of the zodiac: the mutable water sign. See illus. underzodiac. a person born under this sign, usually between February 19th and March 20th. the class of vertebrates comprising the fish and sometimes including, in certain classifications, the cyclostomes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pisces (Thesaurus) piscatory pisci- Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language