S / sўnŏdontītis
noun greek

sўnŏdontītis

gen. sўnŏdontītĭdis · gender feminine · decl. 3rd
= συνοδοντῖτις,
a precious stone found in the brain of the fish
a precious stone found in the brain of the fish synodus, Plin. 37, 10, 67, § 182.