mast

1. (of swine and other animals) To feed on forest seed or fruit.

2. (agriculture, forestry, ecology, of a population of plants) To produce a very large quantity of fruit or seed in certain years but not others.Examples: "Any individual tree which masted in a generally non-mast year would be subjected to the exclusive attention of the seed predators and so would be selected against."; "However, if this were true, all or most masting species (e.g., Fagus and Quercus) in a forest would have to mast in synchrony to be effective against generalist herbivores."; "Because dipterocarp seeds are winged and spin gracefully as they fall, the dispersal of millions of dipterocarp seeds during a masting event is one of the greatest spectacles that you can see on planet Earth."

1. (bodybuilding slang) The anabolic steroid drostanolone propionate, also known as Masteronslanguncountable

1. (obsolete, billiards) A type of heavy cue, with the broad end of which one strikes the ball.Examples: "Godfrey thus conquered, pretended to lose his temper, curs'd his own ill luck, swore that the table had a cast, and that the balls did not run true, changed his mast, and with great warmth challenged his enemy to double his sum."obsolete

1. (emergency medicine, military) Initialism of military antishock trousers; inflatable trousers that apply pressure to the inferior half of a patient's body to decrease blood loss and prevent the onset of shock, similar to a tourniquet.Synonyms: PASGabbreviationalt-ofinitialism