LIMESTONE Meaning of LIMESTONE in English lime ‧ stone /ˈlaɪmstəʊn $ -stoʊn/ BrE AmE noun [uncountable] [ Date: 1500-1600 ; Origin: ⇨ ↑ lime 1 (2) + stone ] a type of rock that contains ↑ calcium Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012