LABOR n.
sportive exercise; hard, muscular effort directed to some useful end, as agriculture, manufactures, and like; servile toil; exertion; work. God hath set Labor and rest, as day and night, to men Successive. Milton.
LAUGH v.
To show mirth, satisfaction, or derision, by peculiar movement of the muscles of the face, particularly of the mouth, causing a lighting up of the face and eyes, and usually accompanied by the emission of explosive or chuckling sounds from the chest and throat; to indulge in laughter. Queen Hecuba laughed that her eyes…
LAUGHTER n.
ticularly of the lips, with a peculiar expression of the eyes, indicating merriment, satisfaction, or derision, and usually attended by a sonorous and interrupted expulsion of air from the lungs. See Laugh, v. i. The act of laughter, which is a sweet contraction of the muscles of the face, and a pleasant agitation of t…
LAW n.
distances being given in the lower line. -- Boyle's law (Physics), an expression of the fact, that when an elastic fluid is subjected to compression, and kept at a constant temperature, the product of the pressure and volume is a constant quantity, i. e., the volume is inversely proportioned to the pressure; -- known…
LEUCIN n.
tter by pancreatic digestion, by the action of boiling dilute sulphuric acid, and by putrefaction. It is also found as a constituent of various tissues and organs, as the spleen, pancreas, etc., and likewise in the vegetable kingdom. Chemically it is to be considered as amido-caproic acid. (CH3)2CH.CH2.CH(NH2)-COOH. L-…