Definitions

1. adjective

Resembling or having a flat plate-like shape, or resembling a platoid echinoderm.

“The platoid shape of the new spaceship design made it more aerodynamic.”

2. noun

A type of echinoderm with a flat, plate-like body, such as a starfish or sea urchin.

“The platoids in the ocean are an important part of the marine ecosystem.”