(organic chemistry) The amino alcohol 2-amino-1-propanol, related to alanine.

(transitive) To manage (a wooded area) sustainably, as a coppice, by periodically cutting back woody plants to promote new growth. / (intransitive) To sprout from the stump.

(speech act, idiomatic) Used to attempt to make a serious point in a jocular conversation.

(botany) Describing an arrangement of leaves such that proximal (posterior) parts of older leaves overlap the distal (anterior) parts of younger ones.