noun
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the head of a pin
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something very small
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informal a stupid or contemptible person
Etymology
Origin of pinhead
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
With a brain the size of a pinhead, insects perform fantastic navigational feats.
From Science Daily • Feb. 12, 2024
To investigate, researchers coated 14 species of coral—10 in the lab and four in the wild—with tiny fluorescent beads, which are each smaller than a pinhead and glow under light-emitting diode light.
From Science Magazine • May 12, 2022
During the tours, experts try to count pinhead cherries in the branches to come up with more detailed projections.
From Reuters • Dec. 13, 2021
The tussle over a punctuation mark no larger than a pinhead comes in a country that has earned a reputation as the defamation capital of the world.
From New York Times • Oct. 11, 2021
Every single day he looked like he had just walked out of Sunday school: Every thin yellow hair on his pinhead was perfectly cut and licked to a gloss.
From Each Little Bird That Sings by Deborah Wiles
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
