triffid

/T R IH1 F AH0 D/
noun
  1. 1

    A fictional plant, able to move around and kill people with a poisonous stinger

  2. 2

    Any of the anemones of the genus Aiptasia with poisonous tentacles, which are a pest in aquaria.

  3. 3

    Any large, fast-growing and hard-to-remove weed, such as the flowering shrub Chromolaena odorata.

Source: https://en.wiktionary.org/wiki/triffid