Definition of indumentum in US English:


nounPlural indumenta

Zoology Botany
  • A covering of hairs (or feathers) on an animal or plant.

    • ‘New foliage covered with indumentum which remains on the undersides of the leafs.’
    • ‘An excellent compact plant with pale green leaves felted with brown indumentum on the reverse.’
    • ‘An indumentum was noted in the inflorescence region or in the upper part of the stem.’
    • ‘Capitulum bracts are spiny and coated with a dense white arachnoidal indumentum.’
    • ‘Morphological characters including the glandular indumentum and cream flower colour suggest that A. ambiguum is close to A. graniticum.’
    • ‘The leaves have a thin fawn to gray indumentum on the underside and are not shiny on the upper surface.’


Mid 19th century: from Latin, literally ‘garment’, from induere ‘put on, don’.