Definition of ascertain

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Ascertain (v. t.) To find out or learn for a certainty, by trial, examination, or experiment; to get to know; as, to ascertain the weight of a commodity, or the purity of a metal..

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Siren :: Siren (n.) An instrument for producing musical tones and for ascertaining the number of sound waves or vibrations per second which produce a note of a given pitch. The sounds are produced by a perforated rotating disk or disks. A form with two disks operated by steam or highly compressed air is used sounding an alarm to vessels in fog.
Autopsy :: Autopsy (a.) Dissection of a dead body, for the purpose of ascertaining the cause, seat, or nature of a disease; a post-mortem examination..
Ascertainable :: Ascertainable (a.) That may be ascertained.
Constate :: Constate (v. t.) To ascertain; to verify; to establish; to prove.
Attain :: Attain (v. t.) To get at the knowledge of; to ascertain.
Number :: Number (n.) To count; to reckon; to ascertain the units of; to enumerate.
Ozonometer :: Ozonometer (n.) An instrument for ascertaining the amount of ozone in the atmosphere, or in any gaseous mixture..
Assay :: Assay (v.) To subject, as an ore, alloy, or other metallic compound, to chemical or metallurgical examination, in order to determine the amount of a particular metal contained in it, or to ascertain its composition..
Spyboat :: Spy (n.) A person sent secretly into an enemy's camp, territory, or fortifications, to inspect his works, ascertain his strength, movements, or designs, and to communicate such intelligence to the proper officer..
Eudiometry :: Eudiometry (n.) The art or process of determining the constituents of a gaseous mixture by means of the eudiometer, or for ascertaining the purity of the air or the amount of oxygen in it..
Pedometer :: Pedometer (n.) An instrument for including the number of steps in walking, and so ascertaining the distance passed over. It is usually in the form of a watch; an oscillating weight by the motion of the body causes the index to advance a certain distance at each step..
Evidence :: Evidence (n.) That which is legally submitted to competent tribunal, as a means of ascertaining the truth of any alleged matter of fact under investigation before it; means of making proof; -- the latter, strictly speaking, not being synonymous with evidence, but rather the effect of it..
Zea :: Zea (n.) A genus of large grasses of which the Indian corn (Zea Mays) is the only species known. Its origin is not yet ascertained. See Maize.
Countless :: Countless (a.) Incapable of being counted; not ascertainable; innumerable.
Meresman :: Meresman (n.) An officer who ascertains meres or boundaries.
Admeasure :: Admeasure (v. t.) Formerly, the adjustment of proportion, or ascertainment of shares, as of dower or pasture held in common. This was by writ of admeasurement, directed to the sheriff..
Oleometer :: Oleometer (n.) An instrument for ascertaining the weight and purity of oil; an elaiometer.
Surveyorship :: Surveyor (n.) In the United States, an officer whose duties include the various measures to be taken for ascertaining the quantity, condition, and value of merchandise brought into a port..
Beatification :: Beatification (n.) The act of beatifying, or the state of being beatified; esp., in the R. C. Church, the act or process of ascertaining and declaring that a deceased person is one of the blessed, or has attained the second degree of sanctity, -- usually a stage in the process of canonization..
Hide :: Hide (n.) A measure of land, common in Domesday Book and old English charters, the quantity of which is not well ascertained, but has been differently estimated at 80, 100, and 120 acres..
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