ˈtrīgəˌnīt, ˈtrig- noun
( -s )
Etymology: German trigonit, from trigon- + -it -ite
: a mineral MnPb 3 H(AsO 3 ) 3 consisting of an acid lead manganese arsenite and occurring in yellow to brown triangular wedge-shaped crystals (hardness 2-3)
ˈtrīgəˌnīt, ˈtrig- noun
( -s )
Etymology: German trigonit, from trigon- + -it -ite
: a mineral MnPb 3 H(AsO 3 ) 3 consisting of an acid lead manganese arsenite and occurring in yellow to brown triangular wedge-shaped crystals (hardness 2-3)
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012