'gibberellin A3' definitions:

Definition of 'gibberellin A3'

From: GCIDE
  • gibberellic acid \gibberellic acid\ n. (Chem.), A plant growth hormone of the gibberellin series (C19H22O6), also called gibberellin A3. It was first isolated from the fungus Gibberella fujikuroi. It is used to promote the growth of seedlings. See also gibberellin. --MI11 [PJC]

Definition of 'gibberellin A3'

From: GCIDE
  • gibberellin \gibberellin\ n. (Chem.), Any of a number plant growth hormones, the first of which was isolated in 1938 from the fungus Gibberella fujikuroi; more than 60 related gibberelins are known. The most important is gibberellin A3, also called gibberellic acid. They are used in agriculture for promoting plant growth. [WordNet 1.5 +PJC]