1.A knob; a small ball; a small, roundish mass.
2.A catch, of various forms and materials, used to fasten together the different parts of dress, by being attached to one part, and passing through a slit, called a buttonhole, in the other; used also for ornament.
3.A bud; a germ of a plant.
4.A piece of wood or metal, usually flat and elongated, turning on a nail or screw, to fasten something, as a door.
5.A globule of metal remaining on an assay cupel or in a crucible, after fusion.
Button snakeroot. (Bot.) (a)The American composite genus Liatris, having rounded buttonlike heads of flowers.
(b)An American umbelliferous plant with rigid, narrow leaves, and flowers in dense heads.
