ECTOSTEAL
Ec*tos"te*al, a. (Physiol.)

Defn: Of or pertaining to ectostosis; as, ectosteal ossification.

ECTOSTOSIS
Ec`tos*to"sis, n. Etym: [NL. See Ect-, and Ostosis.] (Physiol.)

Defn: A process of bone formation in which ossification takes place in the perichondrium and either surrounds or gradually replaces the cartilage.

ECTOZOIC
Ec`to*zo"ic, a. (Zoöl.)

Defn: See Epizoic.

ECTOZOON; ECTOZOOEN
Ec`to*zo"ön, n.; pl. Ectozoa. Etym: [NL., fr. Gr. (Zoöl.)

Defn: See Epizoön.

ECTROPION
Ec*tro"pi*on, n. Etym: [NL., fr. Gr. (Med.)

Defn: An unnatural eversion of the eyelids.