allantoidean
1 of 2adjective (1)
al·lan·toi·de·an
variants or allantoidian
¦alən‧¦tȯidēən,
¦aˌlan‧-;
ə¦lantə¦wid-
: of, relating to, or derived from the allantois
allantoidean
2 of 2adjective (2)
"
: of or relating to the Allantoidea
Word History
Etymology
Adjective (1)
New Latin allantoid-, allantois + English -ean, -ian
Adjective (2)
New Latin Allantoidea + English -an
First Known Use
Adjective (1)
1855, in the meaning defined above
Adjective (2)
1878, in the meaning defined above