Tuffs are further classified by their depositional environment, such as lacustrine tuff, subaerial tuff, or submarine tuff, or by the mechanism by which the ash was transported, such as fallout tuff or ash …

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Tuff is only correct when used as a noun that references a certain type of rock. If you are writing about a specific commercial product that includes tuff as part of a proper name, this usage is also acceptable.

The meaning of TUFF is a rock composed of the finer kinds of volcanic detritus usually fused together by heat.

While tough and tuff sound the same, tough is the established adjective synonymous with resilience and strength. Tuff, on the other hand, is a seldom-used informal alternative or a specific geological term.

May 17, 2025 · Tuff means something is cool, dope, or exciting. Something that’s tuff is something that’s considered cool, typically in a masculine sense. For example, if a clip of an NBA player doing a 360 …

Mar 29, 2025 · What Does ‘Tuff’ Mean? ‘Tuff’ is a slang term derived primarily from the American vernacular, often used to express toughness, resilience, or strength. The word is frequently …

Complicated and difficult to do Expressions meaning 'it isn't important to me' (Definition of tuff from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

Some of the world’s largest deposits of vitric tuff are produced by eruptions through a large number of narrow fissures rather than from volcanic cones. In extensive deposits, tuff may vary greatly not only …

The trilobite fossils were trapped between layers of petrified ash in sandstone, the product of old volcanic eruptions that settled on the sea floor and formed a green layer called a tuff.