variolite

[ vair-ee-uh-lahyt var- ]
/ ˈvɛər i əˌlaɪt ˈvær- /

noun Petrology.

a rock embedded with varioles; a variolitic rock.

British Dictionary definitions for variolite

variolite
/ (ˈvɛərɪəˌlaɪt) /

noun

any basic igneous rock containing rounded bodies (varioles) consisting of radiating crystal fibres

Derived forms of variolite

variolitic (ˌvɛərɪəˈlɪtɪk), adjective

Word Origin for variolite

C18: from variola, referring to the pockmarked appearance of the rock