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ed to this voice; the second of the four parts in the scale of sounds, reckoning from the base, and originally the air, to which the other parts were auxillary.

sense, prehension, or motion. Tentacle sheath (Zoöl.), a sheathlike structure around the base of the tentacles of many mollusks.

t state; sublunary; mundane. Vain labors of terrestrial wit. Spenser. A genius bright and base, Of towering talents, and terrestrial aims. Young.

A poisonous base (ptomaine) formed in meat broth through the agency of a peculiar microbe from the wound of a person who has died of tetanus; -- so called because it produces tetanus as one of its prominent effects.

Capable of neutralizing four molecules of a monacid base; having four hydrogen atoms capable of replacement by bases; quadribasic; -- said of certain acids; thus, normal silicic acid, Si(OH)4, is a tetrabasic acid.

ing four hydrogen atoms capable of replacement ba acids or acid atoms; -- said of certain bases; thus, erythrine, C4H6(OH)4, is a tetracid alcohol.

A hypothetical hydrocarbon, C4H8, analogous to trimethylene, and regarded as the base of well-known series or derivatives.

The prominence of the palm above the base of the thumb; the thenar eminence; the ball of the thumb. Sometimes applied to the corresponding part of the foot.

A weak nitrogenous sulphur base, C6H13NS2.

nature of theft; accomplished by stealing; dishonest; as, a thievish practice. Or with a base and biosterous sword enforce A thievish living on the common road. Shak. -- Thiev"ish*ly, adv. -- Thiev"ish*ness, n.

A double benzene and thiophene nucleus, C8H6S, analogous to naphthalene, and like it the base of a large series of derivatives. [Written also thionaphtene.]

A sulphur hydrocarbon, C4H4S, analogous to furfuran and benzene, and acting as the base of a large number of substances which closely resemble the corresponding aromatic derivatives.

A double thiophene nucleus, C6H4S2, analogous to thionaphthene, and the base of a large series of compounds. [Written also thiophtene.]

The representation of chords by figures placed under the base; figured bass; basso continuo; -- sometimes used as synonymous with harmony.

af (Bot.), a leaf having three distinct and prominent ribs, or nerves, extending from the base.

parts; tripartite. Three- parted leaf (Bot.), a leaf divided into three parts down to the base, but not entirely separate.

the larynx. In man and most mammals it is a highly vascular organ, partly surrounding the base of the larynx and the upper part of the trachea. -- Thyroid dislocation (Surg.), dislocation of the thigh bone into the thyroid foramen. -- Thyroid foramen, the obturator foramen.

eagle, sharp by fast, Tires with her beak on feathers, flesh, and bone. Shak. Ye dregs of baseness, vultures among men, That tire upon the hearts of generous spirits. B. Jonson.

The practice of meanly fawning on another; base sycophancy; servile adulation.

s.), the name of the most popular among letter systems of notation (at least in England), based on key relationship, and hence called "tonic." Instead of the five lines, clefs, signature, etc., of the usual notation, it employs letters and the syllables do, re, mi, etc., variously modified, with other simple signs of d…