Definition of thirty

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Thirty (n.) A symbol expressing thirty, as 30, or XXX..

Lern More About Thirty

Bushel :: Bushel (n.) A dry measure, containing four pecks, eight gallons, or thirty-two quarts..
May :: May (n.) The fifth month of the year, containing thirty-one days..
Sea Elephant :: Sea elephant () A very large seal (Macrorhinus proboscideus) of the Antarctic seas, much hunted for its oil. It sometimes attains a length of thirty feet, and is remarkable for the prolongation of the nose of the adult male into an erectile elastic proboscis, about a foot in length. Another species of smaller size (M. angustirostris) occurs on the coast of Lower California, but is now nearly extinct..
Nonillion :: Nonillion (n.) According to the French and American notation, a thousand octillions, or a unit with thirty ciphers annexed; according to the English notation, a million octillions, or a unit with fifty-four ciphers annexed. See the Note under Numeration..
Leonid :: Leonid (n.) One of the shooting stars which constitute the star shower that recurs near the fourteenth of November at intervals of about thirty-three years; -- so called because these shooting stars appear on the heavens to move in lines directed from the constellation Leo.
Charge :: Charge (n.) Thirty-six pigs of lead, each pig weighing about seventy pounds; -- called also charre..
Testoon :: Testoon (n.) An Italian silver coin. The testoon of Rome is worth 1s. 3d. sterling, or about thirty cents..
Boomerang :: Boomerang (n.) A very singular missile weapon used by the natives of Australia and in some parts of India. It is usually a curved stick of hard wood, from twenty to thirty inches in length, from two to three inches wide, and half or three quarters of an inch thick. When thrown from the hand with a quick rotary motion, it describes very remarkable curves, according to the shape of the instrument and the manner of throwing it, often moving nearly horizontally a long distance, then curving upward t
Pood :: Pood (n.) A Russian weight, equal to forty Russian pounds or about thirty-six English pounds avoirdupois..
Tricennial :: Tricennial (a.) Of or pertaining to thirty years; consisting of thirty years; occurring once in every thirty years.
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..
Joint-fir :: "Joint-fir (n.) A genus (Ephedra) of leafless shrubs, with the stems conspicuously jointed; -- called also shrubby horsetail. There are about thirty species, of which two or three are found from Texas to California..
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..
Knot :: Knot (n.) A division of the log line, serving to measure the rate of the vessel's motion. Each knot on the line bears the same proportion to a mile that thirty seconds do to an hour. The number of knots which run off from the reel in half a minute, therefore, shows the number of miles the vessel sails in an hour..
January :: "January (n.) The first month of the year, containing thirty-one days..
Tierce :: Tierce (n.) A cask whose content is one third of a pipe; that is, forty-two wine gallons; also, a liquid measure of forty-two wine, or thirty-five imperial, gallons..
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..
Thirty :: 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..
Whip :: Whip (v. t.) To punish with a whip, scourge, or rod; to flog; to beat; as, to whip a vagrant; to whip one with thirty nine lashes; to whip a perverse boy..
Decillion :: Decillion (n.) According to the English notation, a million involved to the tenth power, or a unit with sixty ciphers annexed; according to the French and American notation, a thousand involved to the eleventh power, or a unit with thirty-three ciphers annexed. [See the Note under Numeration.].
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