Definitions

1. noun

A cnidocyte is a specialized cell found in cnidarians, which contains a stinging organelle called a cnidoblast or nematocyst.

“The jellyfish’s cnidae delivered painful stings to the swimmer.”

2. plural noun

A cnidae is a collective term referring to the stinging cells found in cnidarians.

“The coral’s cnidae can cause allergic reactions in some people.”