flat iron


: a device used for straightening hair by pressing and pulling sections between two heated metal or ceramic, flat, rectangular plates
usually flatiron , old-fashioned : iron sense 2a

Example Sentences

Recent Examples on the Web Polish off the ends by running a quick flat iron over them, then letting cool to your preferred side. Katie Berohn, Good Housekeeping, 30 Dec. 2022 The main type of material on a flat iron is the plate, which is usually gold, titanium, or ceramic. Madison Yauger, Peoplemag, 22 Nov. 2022 The super-thin titanium plates get close to the root to flat iron the hair straight with one swipe and reduce frizz. Nerisha Penrose, ELLE, 5 Nov. 2022 During a dinner of baked brie empanadas and flat iron steak, passengers can gaze out across the Mojave desert dotted with Joshua trees, before night draws in and the train speeds through the darkness into the brick-red deserts of Arizona. Monisha Rajesh, Condé Nast Traveler, 18 Oct. 2022 To wrap your strands around a wand or bend with a flat iron? Yerin Kim, Seventeen, 8 Dec. 2022 This flat iron has nine heat settings with wide plates and a one-pass straightening design that protects your hair from unnecessary damage. Tiffany Dodson, Harper's BAZAAR, 14 Oct. 2022 During the actual silk press, the way your stylist (or you) uses a flat iron also plays a huge role in straightening with minimal damage. Annie Blay, Allure, 21 Oct. 2022 Favorite features include floating titanium plates with rounded edges for even heat distribution and none of the creasing and snagging we’ve all experienced while attempting waves with a basic flat iron. Natalie Alcala, The Hollywood Reporter, 25 Oct. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'flat iron.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1743, in the meaning defined at sense 2

Time Traveler
The first known use of flat iron was in 1743

Dictionary Entries Near flat iron

Cite this Entry

“Flat iron.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flat%20iron. Accessed 31 Jan. 2023.

Kids Definition


flat·​iron -ˌī(-ə)rn How to pronounce flatiron (audio)
Last Updated: - Updated example sentences
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