All Words > Pinnate

Sunday, May 15

Pinnate

[PIN-eyt]

Part of speech: adjective

Origin: Latin, early 18th century

1.

(Botany — of a compound leaf) having leaflets arranged on either side of the stem, typically in pairs opposite each other.

2.

(Zoology — especially of an invertebrate animal) having branches, tentacles, etc., on each side of an axis, like the vanes of a feather.

Examples of Pinnate in a sentence

"The tree had delicate, pinnate leaves."

"Feathers have a pinnate, symmetrical structure."

Popularity Over Time

Popularity over time graph

About Pinnate

This word comes from the Latin “pinnatus,” meaning “feathered.” This stems from “pinna,” meaning “feather, wing.”

Did you Know?

Pinnate leaves can be separated into two categories: imparipinnate and paripinnate. Imparipinnate, or odd-pinnate, means the leaflets are arranged on both sides with an odd terminal leaflet up top. Paripinnate, or even-pinnate, lacks the terminal leaf.

Trending Words
Trending on the blog

What's the word?