A flute that is smaller than a Western concert flute and pitched nearly an octave higher. / A flute stop in an organ pitched an octave higher than the standard pitch.

A recorder.

(music) An organ stop having the tone of a flute instrument.

(music) A flute stop on an organ of 4' or 2' that is imitative of a recorder.

plural of flute stop

(medicine) A method of clearing intravenous lines IVs, central lines or arterial lines of any medicine or other perishable liquids, by means of saline solution.

plural of fluorescence microscope

Socially adept.

(poker) Synonym of royal flush

The practice of adding fluorine to water, usually drinking water.