Definition

Describing a surface that has smooth, shell-like curves and dips, similar to the inside of a shell.

Example

The conchoidal fracture of the obsidian made it easy to shape into tools.

Conversation

Have you seen that new sculpture at the park?

Yeah, it's amazing how the surface is so conchoidal and smooth.

I know! It gives it such an interesting look, almost like a shell.

Exactly! It really stands out among the other pieces.

Synonyms & Antonyms

Root Explanation

Conchoidal → It is formed from "conch" (from Greek "konchē", meaning shell) and the suffix "-oidal" (from Greek "-oeides", meaning resembling or having the form of). The word "conchoidal" describes something that resembles or has the shape of a shell.

Memory Tip

Think of the word 'conch' which refers to a shell, and remember that 'conchoidal' means resembling a shell.

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