'Ectostosis' definitions:

Definition of 'Ectostosis'

From: GCIDE
  • Ectostosis \Ec`tos*to"sis\, n. [NL. See Ect-, and Ostosis.] (Physiol.) A process of bone formation in which ossification takes place in the perichondrium and either surrounds or gradually replaces the cartilage. [1913 Webster]