Definition

A small leaf or leaflet, especially one of the smaller divisions of a compound leaf.

Example

The pinnulae of the fern were delicate and beautifully arranged.

Conversation

Have you ever seen a pinnula on a fern?

I can't say I have! What does it look like?

It's like a small leaf part that helps with photosynthesis.

That sounds interesting! I should look for one next time I'm outdoors.

Synonyms & Antonyms

Root Explanation

Pinnula → It is derived from the Latin word "pinna" (meaning feather or wing) with the diminutive suffix "-ula" (meaning small). Thus, "pinnula" refers to a small feather or wing-like structure.

Memory Tip

Think of a small 'feather' ('pinna') when you hear 'pinnula' — it helps you remember that it refers to something small and feather-like.

Visually Confused Words