【化】 赤霉酸

[ noun ]
a crystalline acid associated with gibberellin
<noun.substance>

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]


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]