allantoid

From French allantoïde, and its source, Renaissance Latin allantoides, from Koine Greek ἀλλαντοειδής (allantoeidḗs, “sausage-shaped”), from Ancient Greek ἀλλᾶς (allâs, “sausage”). By surface analysis, allant- +‎ -oid.

allantoid (plural allantoids)

1. (obsolete, embryology) The allantois. [17th–20th c.]
   • 1791, Erasmus Darwin, The Economy of Vegetation, J. Johnson, page 8:

     The allantoide in some animals seems to have become extinct; in others is above tenfold the size, which would seem necessary for its purpose.

allantoid (comparative more allantoid, superlative most allantoid)

1. (chiefly embryology) Allantoic. [from 17th c.]
2. (now chiefly mycology) Sausage-shaped; especially with reference to fungal spores that are long with rounded ends. [from 18th c.]

• talonidal