GRANITOID Meaning of GRANITOID in English ˈ ̷ ̷ə̇d.ˌȯid adjectivealso gran·it·oi·dal | ̷ ̷ ̷ ̷.|ȯid ə l : resembling granite : granitic Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012