a valve in a carburetor that consists of a disc that turns and acts as a throttle
a swimming stroke in which the arms are thrown forward together out of the water while the feet kick up and down
cut and spread open, as in preparation for cooking
diurnal insect typically having a slender body with knobbed antennae and broad colorful wings
a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
control consisting of a mechanical device for controlling the flow of a fluid
one of the paired hinged shells of certain molluscs and of brachiopods
