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ectoderm

Upper-Intermediate (B2)

IPA: /ˈɛk.tə.dɜːrm/

KK: /ˈɛktoʊdɜrm/

noun
Definition

The outer layer of cells in an embryo that develops into the skin, nervous system, and some sense organs.


Example

The ectoderm is crucial for the development of the nervous system in vertebrates.


Conversation
Sloth A
Have you ever heard about the ectoderm in embryology?
Sloth B
Yeah, isn't it the layer that develops into the skin and nervous system?
Sloth A
Exactly! It's fascinating how that ectoderm forms so many important structures.
Sloth B
It really is! I love learning about how our bodies develop.

Synonyms & Antonyms
Synonyms
epidermis
membrane
tissue
Antonyms
endoderm
mesoderm
interior
Root Explanation

Ectoderm → It is formed from "ecto-" (from Greek "ektos", meaning outside) and "derma" (from Greek "derma", meaning skin). The word "ectoderm" refers to the outermost layer of cells or tissue in an embryo that develops into the skin and nervous system.

Memory Tip

Think of 'ecto-' meaning 'outside' and 'derma' meaning 'skin' — this helps you remember that ectoderm is the outer layer of skin in an embryo.

Visually Confused Words
entoderm
cytoderm
mesectoderm
cytioderm
exoderm
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