How to Use pinhead in a Sentence

pinhead

noun
  • The insect is the size of a pinhead.
  • Her boss is a real pinhead.
  • Bed bug eggs are white and about the size of a pinhead.
    — Arricca Elin Sansone, Southern Living, 23 Jan. 2026
  • To check yourself for fleas, look for tiny brown bugs that are the size of a pinhead.
    — Carrie Madormo, Health, 10 Sep. 2025
  • Nits are the size of a pinhead, and appear whitish or yellow.
    — Kaitlyn Pirie, Good Housekeeping, 16 Sep. 2019
  • Nits are the size of a pinhead, and appear whitish or yellow.
    — Kaitlyn Pirie, Good Housekeeping, 16 Sep. 2019
  • Nits are the size of a pinhead, and appear whitish or yellow.
    — Kaitlyn Pirie, Good Housekeeping, 16 Sep. 2019
  • Aphids — which are about the size of a pinhead — invaded pecan trees.
    — Sarah Bahari, Dallas News, 18 Oct. 2022
  • To get some scale for the image, their dazzling red caps are just the size of a pinhead.
    — New Atlas, 16 July 2024
  • Exposure to as little as a pinhead amount of ricin can cause death.
    — Fox News, 7 Nov. 2024
  • These small cherry-red bumps can range from the size of a pinhead to a pencil eraser.
    — Washington Post, 17 Dec. 2021
  • Tick larvae, which are translucent and the size of a pinhead, can also bite.
    — Karissa Waddick, USA Today, 29 Aug. 2025
  • If the Sun's the size of a soccer ball, then the Earth is a tiny pinhead.
    — John Wenz, Popular Mechanics, 16 Mar. 2016
  • The predators, each no bigger than a pinhead, come to their senses and zigzag out of the vial.
    — Zoya Teirstein, Wired, 14 Aug. 2021
  • The biggest scourge to bees is tiny—a mite the size of a pinhead that feeds on them and spreads deadly viruses.
    — Erik Stokstad, Science | AAAS, 4 June 2021
  • The company built a robot that fires a laser to open a hole in the shell much smaller than a pinhead.
    — Gretchen Vogel, Science | AAAS, 14 Aug. 2019
  • Indigo and onion progeny are tiny, about the size of a pinhead.
    — Latria Graham, Smithsonian Magazine, 2 Dec. 2022
  • Exposure to as much as a pinhead of the substance will lead to death in 36 to 72 hours.
    — Michael Loria, USA TODAY, 8 Mar. 2025
  • The beads were about the size of pinheads, and archaeologists had to remove each one from the soil block using tweezers.
    — Sarah Kuta, Smithsonian Magazine, 20 Oct. 2023
  • Once manufactured, a pinhead of fentanyl powder is enough to kill someone.
    — Joanna Conti, Baltimore Sun, 10 Jan. 2026
  • These sorts of deals sometimes happened between two drunk pinheads in a tent in the evening, sipping gin and getting a map out and drawing lines across a map.
    — Foreign Affairs, 15 Dec. 2014
  • The plant has small, hollow structures (the bladders) – no bigger than a pinhead – that live under water and have a flexible valve.
    — Allison Futterman, Discover Magazine, 6 Dec. 2021
  • In the aftermath of oil spills, several features make kelp and kelp spores the size of a pinhead perfect for scientific study.
    — Los Angeles Times, 9 Oct. 2021
  • Aphids, which are about the size of a pinhead, are invading trees, mostly pecan, but also oaks, crepe myrtles and others, Sperry said.
    — Sarah Bahari, Dallas News, 12 Oct. 2022
  • Alumni protest that pinhead reporters don’t know the whole story, that these coaches and presidents and chancellors are princely men.
    — Michael Powell, New York Times, 26 May 2016
  • Fleas, the pinhead sized bane of pets and pet owners alike, begin spreading into households across Indiana from mid to late summer.
    — Karl Schneider, The Indianapolis Star, 12 July 2022
  • That’s not to say the drug is completely useless in the fight against citrus greening, which is spread by a pinhead-sized insect called the Asian citrus psyllid.
    — Andrew Jacobs, New York Times, 16 Aug. 2019
  • The X-ray object was located to somewhere inside the white circle, which is about the size a pinhead 100m away would appear.
    — Laura Baisas, Popular Science, 7 Sep. 2023
  • The only blood that is on an article of clothing … was a 1/16 inch-size pinhead spot of blood on an underdress underneath an outer dress.
    — Erin Moriarty, CBS News, 31 July 2021
  • The only blood that is on an article of clothing … was a 1/16 inch-size pinhead spot of blood on an underdress underneath an outer dress.
    — Erin Moriarty, CBS News, 31 July 2021

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'pinhead.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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