Definition of

Auxin

  1. (noun, substance) a plant hormone that promotes root formation and bud growth

via WordNet, Princeton University

Alternate forms of Auxin

Derivations: auxinic

Hyponyms: iaa, indoleacetic acid, indolebutyric acid

Hypernyms: growth regulator, phytohormone, plant hormone

Origin of the word Auxin

  1. plant growth hormone, 1934, from Ger. (1931), from Gk. auxein "to increase" (see augment) + chemical suffix. more

via Online Etymology Dictionary, ©2001 Douglas Harper

Note: If you're looking to improve your vocabulary right now, we highly recommend Ultimate Vocabulary Software.

Word of the Moment

President Truman

elected vice president in Roosevelt's 4th term; became 33rd President of the United States on Roosevelt's death in 1945 and was elected President in 1948; authorized the use of atomic bombs against Japan (1884-1972)