Accelerometer :: Accelerometer (n.) An apparatus for measuring the velocity imparted by gunpowder.

Acetimeter :: Acetimeter (n.) An instrument for estimating the amount of acetic acid in vinegar or in any liquid containing acetic acid.

Acetometer :: Acetometer (n.) Same as Acetimeter.

Acidimeter :: Acidimeter (n.) An instrument for ascertaining the strength of acids.

Acoumeter :: Acoumeter (n.) An instrument for measuring the acuteness of the sense of hearing.

Actinometer :: Actinometer (n.) An instrument for measuring the direct heating power of the sun's rays.

Actinometer :: Actinometer (n.) An instrument for measuring the actinic effect of rays of light.

Aerometer :: Aerometer (n.) An instrument for ascertaining the weight or density of air and gases.

Aesthesiometer :: Aesthesiometer (n.) Alt. of Esthesiomete.

Airometer :: Airometer (n.) A hollow cylinder to contain air. It is closed above and open below, and has its open end plunged into water..

Albuminimeter :: Albuminimeter (n.) An instrument for ascertaining the quantity of albumen in a liquid.

Alcalimeter :: Alcalimeter (n.) See Alkalimeter.

Alcoholmeter :: Alcoholmeter (n.) An instrument for determining the strength of spirits, with a scale graduated so as to indicate the percentage of pure alcohol, either by weight or volume. It is usually a form of hydrometer with a special scale..

Alcoholometer :: Alcoholometer (n.) Alt. of Alcoholmete.

Alcohometer :: Alcohometer (a.) Alt. of Alcohometri.

Aleurometer :: Aleurometer (n.) An instrument for determining the expansive properties, or quality, of gluten in flour..

Alkalimeter :: Alkalimeter (n.) An instrument to ascertain the strength of alkalies, or the quantity of alkali in a mixture..

Altimeter :: Altimeter (n.) An instrument for taking altitudes, as a quadrant, sextant, etc..

Altometer :: Altometer (n.) A theodolite.

Ammeter :: Ammeter (n.) A contraction of amperometer or amperemeter.

Amperemeter :: Amperemeter (n.) Alt. of Amperomete.

Amperometer :: Amperometer (n.) An instrument for measuring the strength of an electrical current in amperes.

Anemometer :: Anemometer (n.) An instrument for measuring the force or velocity of the wind; a wind gauge.

Anglemeter :: Anglemeter (n.) An instrument to measure angles, esp. one used by geologists to measure the dip of strata..

Angulometer :: Angulometer (n.) An instrument for measuring external angles.

Anthracometer :: Anthracometer (n.) An instrument for measuring the amount of carbonic acid in a mixture.

Antimeter :: Antimeter (n.) A modification of the quadrant, for measuring small angles..

Apomecometer :: Apomecometer (n.) An instrument for measuring the height of objects.

Araeometer :: Araeometer () See Areometer.

Areometer :: Areometer (n.) An instrument for measuring the specific gravity of fluids; a form hydrometer.

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