[-he.dron] n comb form, pl -hedrons or -he.dra [NL, fr. Gk -edron, fr. hedra seat--more at sit]: crystal or geometrical figure having a (specified) form or number of surfaces "pentahedron" "trapezohedron"
-HEDRON
Meaning of -HEDRON in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012