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A surface of the fourth degree, having certain special relations to spherical surfaces. The tore or anchor ring is one of the cyclides.

The fourth letter of the English alphabet, and a vocal consonent. The English letter is from Latin, which is from Greek, which took it from Phoenician, the probable ultimate origin being Egyptian. It is related most nearly to t and th; as, Eng. deep, G. tief; Eng. daughter, G. tochter, Gr. duhitr. See Guide to Pronunci…

oximity of blood; one remove in the chain of relationship; as, a relation in the third or fourth degree. In the 11th century an opinion began to gain ground in Italy, that third cousins might marry, being in the seventh degree according to the civil law. Hallam.

ss of like individuals; a category; as, the denomination of units, or of thousands, or of fourths, or of shillings, or of tons. Those [qualities] which are classed under the denomination of sublime. Burke.

A dentilingual sound or letter. The letters of this fourth, dentilingual or linguidental, class, viz., d, t, s, z, l, r. Am. Cyc.

The interval of a fourth.

Disjoining two fourths; as, the diazeutic tone, which, like that from F to G in modern music, lay between two fourths, and, being joined to either, made a fifth. [Obs.]

A finger's breadth, commonly estimated to be three fourths of an inch.

ginary kind of extension, which is assumed to have length, breadth, thickness, and also a fourth imaginary dimension. Space of five or six, or more dimensions is also sometimes assumed in mathematics.

The interval between two notes; as, the distance of a fourth or seventh. Angular distance, the distance made at the eye by lines drawn from the eye to two objects. -- Lunar distance. See under Lunar. -- North polar distance (Astron.), the distance on the heavens of a heavenly body from the north pole. It is the compl…

The fourth or exposed hand when three persons play at a four- handed game of cards.

Of or pertaining to the interval of the octave and the fourth.

A subordinary, resembling the pale, but of one fourth its width (according to some writers, one eighth).

of, lands, tenements, etc.; as, an estate for life, for years, at will, etc. Abbott. The fourth estate, a name often given to the public press.

The name of the fourth tone of the model scale, or scale of C. F sharp (F #) is a tone intermediate between F and G. F clef, the bass clef. See under Clef.

A syllable applied to the fourth tone of the diatonic scale in solmization.

and to meddle for good or evil in the affairs of mankind; a fay. See Elf, and Demon. The fourth kind of spirit [is] called the Fairy. K. James. And now about the caldron sing, Like elves and fairies in a ring. Shak.

une. Falcidian law (Civil Law), a law by which a testator was obliged to leave at least a fourth of his estate to the heir. Burrill.

The fourth part of an acre of land. [Obs.] [Written also farding dale, fardingale, etc.]

The fourth of a penny; a small copper coin of Great Britain, being a cent in United States currency.