allantoidea
|al-lan-toi-de-a|
C2
/ˌælənˈtɔɪdiə/
vertebrates with allantois
Etymology
Etymology Information
'allantoidea' originates from Greek, specifically the word 'allantoeidēs,' where 'allanto-' meant 'sausage' and '-eidēs' meant 'form or shape.'
Historical Evolution
'allantoeidēs' transformed into the scientific term 'allantoidea' in modern taxonomy.
Meaning Changes
Initially, it referred to the sausage-like shape of the allantois, but over time it evolved into its current meaning of a group of vertebrates with an allantois.
Meanings by Part of Speech
Noun 1
a group of vertebrates that includes reptiles, birds, and mammals, characterized by the presence of an allantois during embryonic development.
The allantoidea are distinguished by their unique embryonic development.
Synonyms
Last updated: 2025/06/25 02:36