yüˈdidəˌmīt noun
( -s )
Etymology: Norwegian eudidymit, from eu- + Greek didymos twin + Norwegian -it -ite; from its occurrence in twin crystals — more at didym-
: a mineral NaBeSi 3 O 7 (OH) consisting of a white glassy sodium beryllium silicate
yüˈdidəˌmīt noun
( -s )
Etymology: Norwegian eudidymit, from eu- + Greek didymos twin + Norwegian -it -ite; from its occurrence in twin crystals — more at didym-
: a mineral NaBeSi 3 O 7 (OH) consisting of a white glassy sodium beryllium silicate
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012