Defn: A small, rounded, marine organism, capable of braking up into coccoliths.

COCCOSTEUS
Coc*cos"te*us, n. Etym: [NL., from Gr. (Paleon.)

Defn: An extinct genus of Devonian ganoid fishes, having the broad plates about the head studded with berrylike tubercles.

COCCULUS INDICUS Coc"cu*lus In"di*cus, n. Etym: [NL. cocculus (dim. of L. coccum kermes berry) + L. Indicus of India.] (Bot.)

Defn: The fruit or berry of the Anamirta Cocculus, a climbing plant of the East Indies. It is a poisonous narcotic and stimulant.

COCCUS
Coc"cus, n.; pl. Cocci. Etym: [NL., fr. Gr. Cochineal.]

1. (Bot.)

Defn: One of the separable carpels of a dry fruit.

2. (Zoöl.)

Defn: A genus of hemipterous insects, including scale insects, and the cochineal insect (Coccus cacti).