Definition

Relating to organisms that develop from two primary layers of cells during embryonic development, specifically the ectoderm and endoderm, without a middle layer called mesoderm.

Example

Sponges and jellyfish are examples of diploblastic animals that have only two germ layers.

Conversation

Did you know that some animals are diploblastic?

Really? What does that mean exactly?

It means they have only two germ layers, the ectoderm and endoderm.

Oh, I see! That explains why sponges are so different from us.

Synonyms & Antonyms

Root Explanation

Diploblastic → It is formed from "di-" (meaning two) and "plastos" (from Greek, meaning formed or molded). The term describes organisms that have two primary germ layers in their embryonic development.

Memory Tip

Think of 'two' ('di-') layers that are 'formed' ('plastos') in certain organisms — that's what diploblastic means.

Visually Confused Words