DECAGYNIA
Dec`a*gyn"i*a, n. pl. Etym: [NL., fr. Gr. (Bot.)
Defn: A Linnæan order of plants characterized by having ten styles.
DECAGYNIAN; DECCAGYNOUS
Dec`a*gyn"i*an, Dec*cag"y*nous, a. Etym: [Cf. F. décagyne.] (Bot.)
Defn: Belonging to the Decagynia; having ten styles.
DECAHEDRAL
Dec`a*he"dral, a.
Defn: Having ten sides.
DECAHEDRON Dec`a*he"dron, n.; pl. E. Decahedrons, L. Decahedra. Etym: [Pref. deca- + Gr. 'e`dra a seat, a base, fr. 'e`zesthai to sit: cf. F. décaèdre.] (Geom.)
Defn: A solid figure or body inclosed by ten plane surfaces. [Written also, less correctly, decaedron.]
DECALCIFICATION
De*cal`ci*fi*ca"tion, n.
Defn: The removal of calcareous matter.