Meaning of Tuff

English: Tuff
Bangla: চুনময় পাথর
Hindi: ज्वालामुखी चट्टान के टुकडे
Type: Unknown / অজানা / अज्ञात

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Definition: 1

tough (def 13).

Definition: 2

a fragmental rock consisting of the smaller kinds of volcanic detritus, as ash or cinder, usually more or less stratified.

Definition: 3

a rock formed by the fusing together on the ground of small rock fragments (less than 2 mm across) ejected from a volcano