Definition

A unit of measurement in the metric system that is equal to 10 meters.

Example

The marathon course was measured to be exactly 42 decameters long.

Conversation

Did you know that a decameter is equal to 10 meters?

Really? I had no idea it was that long!

Yeah, it's interesting how metric units work.

For sure! I should start using them more often.

Synonyms & Antonyms

Root Explanation

Decameter → It is formed from "deca-" (from Greek "deka", meaning ten) and "meter" (from Greek "metron", meaning measure). The word "decameter" refers to a unit of length that is ten meters long.

Memory Tip

Think of 'deca-' meaning ten and 'meter' meaning measure — so a decameter is a measure of ten meters.

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