Where does “allantoideo” come from?

allantoideo (Italian) comes from Italian allantoide, from Ancient Greek ἀλλαντοειδής, from Ancient Greek ἀλλᾶς — sausage.

allantoideo (Italian): allantoid

Definitions

allantoid

Ancestry of “allantoideo”, step by step

Step	Language	Word	Meaning
1	Italian	allantoide	allantois
2	Ancient Greek	ἀλλαντοειδής	sausage-shaped
3	Ancient Greek	ἀλλᾶς	sausage

Every word from Ancient Greek ἀλλᾶς →

allantoideo — Etymology, Origin & Word History | Etymology Explorer