n.
1.(geology) the leaping movement of sand or soil particles as they are transported in a fluid medium over an uneven surface
2.a mutation that drastically changes the phenotype of an organism or species
3.an abrupt transition
4.taking a series of rhythmical steps (and movements) in time to music
5.a light springing movement upwards or forwards
Idiom of the Day
try out (something) or try (something) out
to test something
We were not permitted to try out the computer before we bought it.