A molecular entity capable of donating a hydron to an acceptor (Bronsted base).
(via oxoacid )
A plant growth regulator that modulates the formation of stems, leaves and flowers, as well as the development and ripening of fruit. The term includes endogenous and non-endogenous compounds (e.g. active compounds produced by bacteria on the leaf surface) as well as semi-synthetic and fully synthetic compounds.
(via gibberellin )