hə̇ˈsīə(ˌ)nē noun
Usage: capitalized
Etymology: New Latin, after Hesione, Trojan princess of Greek mythology saved from a monster by Hercules, from Latin, from Greek Hēsionē
: a genus (the type of the family Hesionidae) of marine free-swimming polychaete worms having long peristomial cirri and two pairs of eyes