dysplasia of the nails

A lightweight metal-framed saw in the shape of a bow with a removable coarse wide blade, used for cutting tree trunks. / A woodworking saw used for straight or curved cuts.

(dated) A Montanan.

(physics) A gas in a state of such low density that the average distance travelled by the its molecules between collisions (mean free path) is greater than the diameter of the receptacle that conta...