protective fold

1. 1.

   a flap of tissue that protects what it covers

   Broaderflap

   Narrowereyelidnictitating membrane

Questions about protective fold

What does protective fold mean?

protective fold means "a flap of tissue that protects what it covers".

Is protective fold a common word?

protective fold is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.