tri·​chome | \ ˈtri-ˌkōm How to pronounce trichome (audio) , ˈtrī-\

Definition of trichome

: a filamentous outgrowth especially : an epidermal hair structure on a plant

Examples of trichome in a Sentence

Recent Examples on the Web

Hemp’s sativa is taller; the shorter indica has resiny trichomes accounting for its psychoactive power. Adam Popescu, New York Times, "There’s No Place Like Home, Especially if It’s Made of Hemp," 29 Jan. 2018 As for water, tillandsias take it in through scales on their leaves — trichomes, actually. Jeff Lowenfels, Anchorage Daily News, "What’s the easiest houseplant to grow?," 25 Jan. 2018 The trichome-forming bacteria are similar to another bacterium called Thioploca. Scientific American Blog Network, "Bacterial Hair on Undersea Volcano Unlike Any Seen Before," 21 Apr. 2017 These trichomes had a diameter of three to six micrometers -- somewhat large for bacteria. Scientific American Blog Network, "Bacterial Hair on Undersea Volcano Unlike Any Seen Before," 21 Apr. 2017 Mass production can knock off the sticky little tiny crystal-like hairs called trichomes that cover cannabis flowers, oozing with aromatic oils called terpenes as well as valuable cannabinoids like THC and CBD. Lisa M. Krieger, The Cannifornian, "California cannabis: Small-firm market approach makes sense, growers say," 21 Mar. 2017 It, too, forms a bundle of trichomes surrounded by a mucus sheath. Scientific American Blog Network, "Bacterial Hair on Undersea Volcano Unlike Any Seen Before," 21 Apr. 2017

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

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First Known Use of trichome

1875, in the meaning defined above

History and Etymology for trichome

German Trichom, from Greek trichōma growth of hair, from trichoun to cover with hair, from trich-, thrix hair

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Time Traveler for trichome

The first known use of trichome was in 1875

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More Definitions for trichome


tri·​chome | \ ˈtrik-ˌōm How to pronounce trichome (audio) , ˈtrī-ˌkōm How to pronounce trichome (audio) \

Medical Definition of trichome

: a strand or chain of cells (as in a filamentous colony of bacteria or algae)

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Comments on trichome

What made you want to look up trichome? Please tell us where you read or heard it (including the quote, if possible).


to mark by some ceremony or observation

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