anallantoidea
|an-al-lan-toi-de-a|
/ˌæn.ælˌænˈtɔɪ.di.ə/
animals without an allantois
Etymology
'anallantoidea' originates from New Latin, specifically the prefix 'an-' meaning 'without' and 'allantois' (an embryonic membrane), plus the suffix '-oidea' meaning 'resembling' or 'group'.
'anallantoidea' was formed in modern scientific Latin to describe animals lacking an allantois, and has been used in zoological classification since the 19th century.
Initially, it meant 'animals without an allantois', and this meaning has remained consistent in scientific usage.
Meanings by Part of Speech
Noun 1
a group of vertebrate animals whose embryos do not develop an allantois (an extra-embryonic membrane).
Fish and amphibians are classified as anallantoidea.
Synonyms
Antonyms
Last updated: 2025/07/28 14:21