Cathair

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The hair of a cat. uncountable

    "How can you tell a cat owner? all the little claw marks on their back...Or by the cathair that sticks to their suit."

  2. 2
    An ancient Irish fortification of stone or earthwork.

    "Several cathairs which we have examined are not circular in plan, but appear to have been formed to suit the contour of the eminence upon which they stand; and others are of an oval form."

  3. 3
    A single hair of a cat. countable

    "A pimpled chin, dark with cathairs, a mouthful of irregular teeth, were visible below helmet and goggles."

Example

More examples

"How can you tell a cat owner? all the little claw marks on their back...Or by the cathair that sticks to their suit."

Etymology

Etymology 1

From cat + hair.

Etymology 2

From Irish cathair.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.