[jib-uh-rel-ik, jib-] 
| a gibberellin C18H21O4COOH, produced as a metabolite by the fungus Gibberella fujikuroi, used as a stimulator of plant growth. |
| gib·ber·el·lic acid (jĭb'ə-rěl'ĭk) n. A hormone, C19H22O6, obtained from the fungus Gibberella fujikuroi and used to promote the growth of plants, especially seedlings. [From gibberellin.] |
| gibberellic acid (jĭb'ə-rěl'ĭk) Pronunciation Key
A plant hormone that promotes growth and that is the most important of the gibberellins. It is used commercially to break dormancy of plants, promote germination, and increase or retard the development of fruit. Gibberellic acid is also a metabolic byproduct of certain fungi. Chemical formula: C19H22O6. |
əˈrɛl