Depression and addiction, for example, have several things in common, including: 1  Loss of interest in once-enjoyable activities. 2  Fatigue. 3  Feelings of hopelessness. 4  Reckless behavior. 5  Irritability.
Deflection Temperature Testing of Plastics. The deflection temperature is a measure of a polymer's ability to bear a given load at elevated temperatures. The deflection temperature is also known as the 'deflection temperature under load' (DTUL), 'heat deflection temperature', or 'heat distortion temperature' (HDT).
heatstroke. noun heatÂ·stroke \ËhÄt-ËstrÅk\. Tweet. medical: a serious condition that happens when someone has been in high temperatures for a long time and that causes a person to stop sweating, have a very high body temperature, and become exhausted or unconscious.eatstroke. noun heatÂ·stroke \ËhÄt-ËstrÅk\. Tweet. medical: a serious condition that happens when someone has been in high temperatures for a long time and that causes a person to stop sweating, have a very high body temperature, and become exhausted or unconscious.