Langimage
English

amniotes

|am-ni-otes|

C1

🇺🇸

/ˈæmniˌoʊts/

🇬🇧

/ˈæmniəʊts/

(amniote)

vertebrate with amnion

Base FormPlural
amnioteamniotes
Etymology
Etymology Information

'amniote' originates from Greek, specifically the word 'amnion,' where 'amni-' meant 'bowl' or 'lamb' and '-ote' is a suffix used in biology to denote a group.

Historical Evolution

'amnion' transformed into the modern English word 'amniote' through scientific classification terminology.

Meaning Changes

Initially, it referred to the membrane surrounding the embryo, but over time it evolved into its current meaning of a group of vertebrates with this feature.

Meanings by Part of Speech

Noun 1

a group of tetrapod vertebrates that have an amnion during the development of the embryo, including reptiles, birds, and mammals.

Amniotes are distinguished by their ability to lay eggs on land or retain fertilized eggs within the mother.

Synonyms

Last updated: 2025/07/18 22:06