thermo-, therm-, thermi-, -thermia, -therm, -thermal, -thermic, -thermias, -thermies, -thermous, -thermy

1. In physics, an instrument for recording simultaneously the pressure and temperature of a gas; a combination of a thermograph and a barograph.
2. An instrument that simultaneously records variations in temperature as well as atmospheric pressure.

1. A barometric instrument graduated for giving altitudes as determined by the boiling point of water.
2. As applied by Belloni to a syphon-barometer having its two wide legs united by a narrow tube, so that it could be used either in its ordinary position as a barometer, or in the reversed position as a thermometer.

The study of the effects of heat on living organisms and biological processes.

Thriving at relatively high temperatures; such as, certain bacteria. Also known as thermophil or thermophilic.

Removal (excision) of tissues or an organ by thermocautery; that is, excision with a heated wire or cautery.

1. The use of an actual cautery; such as, an electrocautery (cauterization by means of a hot wire or point) to burn away tissue during a surgical procedure.

Cauterization is the destruction (burning) of tissue with a hot instrument, an electric current, or a caustic substance.

2. Any form of agent or an instrument (a needle or snare) used to destroy abnormal tissue by burning, searing, or scarring, including caustic substances, electric currents, lasers, and very hot or very cold instruments.

One who specializes in the use of chemical action and heat.

1. The interrelation of chemical action and heat.
2. The aspect of physical chemistry dealing with heat changes that accompany chemical reactions and changes of state.
3. The study of chemical changes and energies as they are affected by heat.
4. The use of chemicals in treating or preventing disease; based on their effect on the causative agent.
5. A branch of chemistry studying the heat changes that accompany chemical reactions and changes of state.

1. Exerting a selective action of heat rays.
2. Reflecting some of the heat rays and absorbing or transmitting others.
3. Having the property of differentially transmitting, absorbing, or changing radiant heat depending on wave length.

1. The differential properties of heat radiation with respect to refraction, reflection, and absorption, depending on wave length.
2. The property of certain substances which differentially transmit, absorb, or change radiant heat depending on wave length.

Having the ability to change optical properties reversibly and persistently by the action of temperature.

The property possessed by heat rays of reflection, refraction, and absorption, similar to that of light rays.

The selective action of certain substances on radiant heat, absorbing some of the rays, reflecting or transmitting others.

Self-pollination within flowers that fail to open because of unfavorable temperature conditions.

1. In geophysics, a layer in a body of water at which the rate of temperature decreases when depth is at a maximum; such as, a thin layer of water at the depth range of 300-800 meters in the tropical and subtropical basins, between the deep abyssal waters and the surface mixed layer.
2. A horizonal temphorizontal temperature discontinuity layer in a lake in which the temperature falls by at least 1°C per meter depth.
3. A boundary layer in the sea in which temperature changes sharply with depth.