Lyrist noun [ Latin lyristes , Greek lyristh`s : confer French lyriste .] A musician who plays on the harp or lyre; a composer of lyrical poetry. Shelley.

Lysimeter (li*sĭm"e*tẽr) noun [ Greek ly`sis a loosing + - meter .] An instrument for measuring the water that percolates through a certain depth of soil. Knight.

Lysis (lī"sĭs) noun [ New Latin , from Greek ly`sis .] (Medicine) The resolution or favorable termination of a disease, coming on gradually and not marked by abrupt change.

» It is usually contrasted with crisis , in which the improvement is sudden and marked; as, pneumonia ends by crisis , typhoid fever by lysis .

Lyssa (lĭs"sȧ) noun [ New Latin See Lytta .] (Medicine) Hydrophobia.

» The plural ( Lyssæ ) has been used to signify the pustules supposed to be developed under the tongue in hydrophobia.

Lyterian (li*tē"rĭ* a n) adjective [ Greek lyth`rios healing, from lyth`r a deliverer, from ly`ein to loosen.] (Medicine) Terminating a disease; indicating the end of a disease.

Lythe (līth) noun (Zoology) The European pollack; -- called also laith , and leet . [ Scot.]

Lythe (lī&thlig;) adjective [ See Lithe , adjective ] Soft; flexible. [ Obsolete] Spenser.

Lythonthriptic (lĭth`ŏn*thrĭp"tĭk), Lyth`on*trip"tic (-trĭp"tĭk) }, adjective (Medicine) See Lithontriptic .

Lytta (lĭt"tȧ) noun ; plural Lyttæ (-tē). [ Latin , a worm said to grow under the tongue of dogs, and to cause canine madness, from Greek ly`tta , ly`ssa , lit., madness.] (Anat.) A fibrous and muscular band lying within the longitudinal axis of the tongue in many mammals, as the dog.