Definition of thirty

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Thirty (a.) Being three times ten; consisting of one more than twenty-nine; twenty and ten; as, the month of June consists of thirty days..

Lern More About Thirty

Thirtieth :: Thirtieth (a.) Constituting or being one of thirty equal parts into which anything is divided.
Zither :: Zither (n.) An instrument of music used in Austria and Germany. It has from thirty to forty wires strung across a shallow sounding-board, which lies horizontally on a table before the performer, who uses both hands in playing on it. [Not to be confounded with the old lute-shaped cittern, or cithern.].
Centimetre :: Centimetre (n.) The hundredth part of a meter; a measure of length equal to rather more than thirty-nine hundredths (0.3937) of an inch. See Meter.
Sextillion :: Sextillion (n.) According to the method of numeration (which is followed also in the United States), the number expressed by a unit with twenty-one ciphers annexed. According to the English method, a million raised to the sixth power, or the number expressed by a unit with thirty-six ciphers annexed. See Numeration..
Thirty :: Thirty (n.) The sum of three tens, or twenty and ten; thirty units or objects..
Bushel :: Bushel (n.) A dry measure, containing four pecks, eight gallons, or thirty-two quarts..
Thirtieth :: Thirtieth (n.) The quotient of a unit divided by thirty; one of thirty equal parts.
Tricennarious :: Tricennarious (a.) Of or pertaining to thirty years; tricennial.
Section :: Section (n.) One of the portions, of one square mile each, into which the public lands of the United States are divided; one thirty-sixth part of a township. These sections are subdivided into quarter sections for sale under the homestead and preemption laws..
Quintilllion :: Quintilllion (n.) According to the French notation, which is used on the Continent and in America, the cube of a million, or a unit with eighteen ciphers annexed; according to the English notation, a number produced by involving a million to the fifth power, or a unit with thirty ciphers annexed. See the Note under Numeration..
Nepenthes :: Nepenthes (n.) A genus of climbing plants found in India, Malaya, etc., which have the leaves prolonged into a kind of stout tendril terminating in a pitcherlike appendage, whence the plants are often called pitcher plants and monkey-cups. There are about thirty species, of which the best known is Nepenthes distillatoria. See Pitcher plant..
Parasang :: Parasang (n.) A Persian measure of length, which, according to Herodotus and Xenophon, was thirty stadia, or somewhat more than three and a half miles. The measure varied in different times and places, and, as now used, is estimated at from three and a half to four English miles..
Trigesimo-secundo :: Trigesimo-secundo (n.) A book composed of sheets so folded that each one makes thirty-two leaves; hence, indicating, more or less definitely, a size of book; -- usually written 32mo, or 32?, and called thirty-twomo..
March :: March (n.) The third month of the year, containing thirty-one days..
December :: December (n.) The twelfth and last month of the year, containing thirty-one days. During this month occurs the winter solstice..
Sextodecimo :: Sextodecimo (a.) Having sixteen leaves to a sheet; of, or equal to, the size of one fold of a sheet of printing paper when folded so as to make sixteen leaves, or thirty-two pages; as, a sextodecimo volume..
Testoon :: Testoon (n.) An Italian silver coin. The testoon of Rome is worth 1s. 3d. sterling, or about thirty cents..
Fortieth :: Fortieth (a.) Following the thirty-ninth, or preceded by thirty-nine units, things, or parts..
Laminaria :: Laminaria (n.) A genus of great seaweeds with long and broad fronds; kelp, or devil's apron. The fronds commonly grow in clusters, and are sometimes from thirty to fifty feet in length. See Illust. of Kelp..
Triaconter :: Triaconter (n.) A vessel with thirty banks of oars, or, as some say, thirty ranks of rowers..
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