[ tuh-men-tuhm ]
See synonyms for tomentum on
noun,plural to·men·ta [tuh-men-tuh]. /təˈmɛn tə/. Botany, Entomology.
  1. pubescence consisting of longish, soft, entangled hairs pressed close to the surface.

Origin of tomentum

1690–1700; <New Latin tōmentum,Latin: stuffing (of wool, hair, etc.) for cushions

Words Nearby tomentum Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use tomentum in a sentence

British Dictionary definitions for tomentum


/ (təˈmɛntəm) /

nounplural -ta (-tə)
  1. a feltlike covering of downy hairs on leaves and other plant parts

  2. a network of minute blood vessels occurring in the human brain between the pia mater and cerebral cortex

Origin of tomentum

C17: New Latin, from Latin: stuffing for cushions; related to Latin tumēre to swell

Derived forms of tomentum

  • tomentose (təˈmɛntəʊs), adjective

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