gibberellin

[ jib-uh-rel-in ]

noun

, Biochemistry.

1. any of a class of growth hormones occurring in fungi and plants.

gibberellin

/ ˌdʒɪbəˈrɛlɪn /

noun

1. any of several plant hormones, including gibberellic acid, whose main action is to cause elongation of the stem: used in promoting the growth of plants, in the malting of barley, etc

gibberellin

/ jĭb′ə-rĕl′ĭn /

1. Any of numerous plant hormones, especially gibberellic acid, that promote stem elongation. The seeds, young shoots, and roots of plants contain gibberellins, and they are also found in fungi.

Word History and Origins

Origin of gibberellin¹

1935–40; < New Latin Gibberell ( a ) ( gibberellic acid ) + -in ²