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thermal conductivity. n. 1. (General Physics) a measure of the ability of a substance to conduct heat, determined by the rate of heat flow normally through an area in the substance divided by the area and by minus the component of the temperature gradient in the direction of flow: measured in watts per metre per kelvin.
Carrier conditions (medical condition): A condition where a person is symptom-free despite a genetic or infectious disease. Carrier conditions (medical condition): The term carrier is used for any person who is symptom-free (or has only very mild symptoms) despite having a medical condition.