Definition

Relating to a type of rock formed from volcanic ash and fragments.

Example

The geologist studied the tuffaceous layers in the canyon to understand the area's volcanic history.

Conversation

Have you ever seen those rocks that look tuffaceous?

Yeah, I think I saw some at the park last weekend!

They have such a unique texture, don't you think?

Definitely! It's interesting how nature creates such tuffaceous formations.

Synonyms & Antonyms

Root Explanation

Tuffaceous is derived from "tuff" (from Italian "tufo", meaning porous volcanic rock) and the suffix "-aceous" (meaning of or pertaining to). The word describes something that is related to or composed of tuff, a type of rock formed from volcanic ash.

Memory Tip

Think of 'tuff' as a type of volcanic rock, and remember that 'tuffaceous' means something related to that rock.

Visually Confused Words