noun Etymology: Latin Syenites (lapis) stone of Syene, from Syene, ancient city in Egyptian Date: circa 1796 an igneous rock composed chiefly of feldspar, syenitic adjective
SYENITE
Meaning of SYENITE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012