Definitions

1. adjective

resembling or related to a snake, especially an ophiura or ophiuroid; snake-like

“The ophioid shape of the rock formation caught the attention of the geologist.”

2. noun

a member of the class Ophiuroidea, a group of marine animals that have a snake-like body and five or more short, moveable arms

“The ophioid was found in the deep-sea trench, its long arms waving gently in the current.”