Definition

Describing an organism that does not have a true body cavity or digestive system.

Example

The acoelous organism does not possess a coelom, which is a characteristic of more complex animals.

Conversation

Did you know that some organisms are classified as acoelous?

Really? What does that mean exactly?

It means they lack a true body cavity or digestive tract.

Interesting! I guess it shows how diverse life can be.

Synonyms & Antonyms

Root Explanation

Acoelous → It is formed from "a-" (meaning without) and "coelus" (from Greek "koilos", meaning hollow or cavity). The word "acoelous" describes organisms that lack a body cavity or coelom.

Memory Tip

Think of 'without' ('a-') and 'hollow' ('coelus') to remember that 'acoelous' refers to creatures that do not have a body cavity.

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