Defn: A figure composed of two equilateral triangles intersecting so as to form a six-pointed star, — used in early ornamental art, and also with superstitious import by the astrologers and mystics of the Middle Ages.
PENTACOCCOUS
Pen`ta*coc"cous, a. Etym: [See Penta-, Coccus.] (Bot.)
Defn: Composed of five united carpels with one seed in each, as certain fruits.
PENTACONTER
Pen"ta*con`ter, n. (Gr. Antiq.)
Defn: See Penteconter.
PENTACRININ
Pen*tac"ri*nin, n. (Physiol. Chem.)
Defn: A red and purple pigment found in certain crinoids of the genus
Pentacrinus.
PENTACRINITE
Pen*tac"ri*nite, n. Etym: [Penta- + Gr. (Zoöl.)
Defn: Any species of Pentacrinus.
PENTACRINOID
Pen*tac"ri*noid, n. Etym: [Pentacrinus + -oid.] (Zoöl.)