TRIGONAL


Meaning of TRIGONAL in English

adj.

Pronunciation: tr ī - ' g ō -n ə l

Function: adjective

Date: 1878

: of, relating to, or being the division of the hexagonal crystal system or the forms belonging to it characterized by a vertical axis of threefold symmetry

– tri · go · nal · ly \ -n ə l- ē \ adverb

Merriam Webster Collegiate English Dictionary.      Merriam Webster - Энциклопедический словарь английского языка.