What does felleus mean in Latin?

felleus, a adjective, means “pertaining to the gall bladder”.

How do you pronounce felleus?

In classical Latin, [ˈfɛl.le.ʊs]; in ecclesiastical (church) Latin, [ˈfɛl.le.us].

adjectivefirst/second-declension adjective

felleus (feminine fellea, neuter felleum)

Classical[ˈfɛl.le.ʊs]Ecclesiastical[ˈfɛl.le.us]

singular
form	masculine	feminine	neuter
nominative	felleus	fellea	felleum
genitive	felleī	felleae	felleī
dative	felleō	felleae	felleō
accusative	felleum	felleam	felleum
ablative	felleō	felleā	felleō
vocative	fellee	fellea	felleum

plural
form	masculine	feminine	neuter
nominative	felleī	felleae	fellea
genitive	felleōrum	felleārum	felleōrum
dative	felleīs	felleīs	felleīs
accusative	felleōs	felleās	fellea
ablative	felleīs	felleīs	felleīs
vocative	felleī	felleae	fellea

fellĕus, a, um, adj. fel,

I. of gall, full of gall, like gall: sudores, Plin. 26, 12, 76, § 124: urina, Cael. Aur. Tard. 3, 6.

From fel.