D defs.my
Entry 1 sense Webster, 1913

Decahedron

/(dĕk`ȧ*hē"drŏn)/ · Dec·a·he·dron · IPA /ˌdɛkəˈhiːdɹən/
01 n. A solid figure or body inclosed by ten plane surfaces.
pl. Decahedrons, Decahedra ((dĕk`ȧ*hē"drŏnz))
  1. 1.
    A solid figure or body inclosed by ten plane surfaces.(Geom.)