allantoidean

1 of 2

adjective (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 2

adjective (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

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