Definitions Found:
an instrument for measuring the altitude and azimuth of heavenly bodies
- altazimuthan instrument for measuring the altitude and azimuth of heavenly bodies
- altazimuthsALTAZIMUTH, an instrument for measuring the altitude and azimuth of heavenly bodies
- sextantsan instrument for measuring angular distances used especially in navigation to observe altitudes of celestial bodies (as in ascertaining latitude and longitude)
- barometryan instrument for determining the pressure of the atmosphere and hence for assisting in forecasting weather and for determining altitude
- astrolabesAn instrument formerly used to make astronomical measurements, typically of the altitudes of celestial bodies, and in navigation for calculating latitude, before the development of the sextant. In its basic form (known from classical times), it consists of a disk with the edge marked in degrees and a pivoted pointer
- anemographan instrument for measuring the pressure and velocity of wind
- anemographsANEMOGRAPH, an instrument for measuring the pressure and velocity of wind
- perimeterAn instrument for measuring the extent and characteristics of a person's field of vision
- perimetersAn instrument for measuring the extent and characteristics of a person's field of vision
- nitrometricrelating to the use of a nitrometer, an instrument for measuring nitrogen and its compounds
- anemograma record made by an anemograph, an instrument for measuring the pressure and velocity of wind
- anemogramsANEMOGRAM, a record made by an anemograph, an instrument for measuring the pressure and velocity of wind
- electroscopesAn instrument for detecting and measuring electricity, esp. as an indication of the ionization of air by radioactivity
- electroscopeAn instrument for detecting and measuring electricity, esp. as an indication of the ionization of air by radioactivity
- nephelometerAn instrument for measuring the size and concentration of particles suspended in a liquid or gas, esp. by means of the light they scatter
- plethysmographAn instrument for recording and measuring variation in the volume of a part of the body, esp. as caused by changes in blood pressure
- nephelometersAn instrument for measuring the size and concentration of particles suspended in a liquid or gas, esp. by means of the light they scatter
- plethysmographsAn instrument for recording and measuring variation in the volume of a part of the body, esp. as caused by changes in blood pressure
- polarimetersAn instrument for measuring the polarization of light, and esp. (in chemical analysis) for determining the effect of a substance in rotating the plane of polarization of light
- polarimeterAn instrument for measuring the polarization of light, and esp. (in chemical analysis) for determining the effect of a substance in rotating the plane of polarization of light
- compassesAn instrument for drawing circles and arcs and measuring distances between points, consisting of two arms linked by a movable joint, one arm ending in a point and the other usually carrying a pencil or pen
- compassAn instrument for drawing circles and arcs and measuring distances between points, consisting of two arms linked by a movable joint, one arm ending in a point and the other usually carrying a pencil or pen
- thermometersAn instrument for measuring and indicating temperature, typically one consisting of a narrow, hermetically sealed glass tube marked with graduations and having at one end a bulb containing mercury or alcohol that expands and contracts in the tube with heating and cooling
- thermometerAn instrument for measuring and indicating temperature, typically one consisting of a narrow, hermetically sealed glass tube marked with graduations and having at one end a bulb containing mercury or alcohol that expands and contracts in the tube with heating and cooling