Full Definition of AUTISM. : a variable developmental disorder that appears by age three and is characterized by impairment of the ability to form normal social relationships, by impairment of the ability to communicate with others, and by stereotyped behavior patterns.â auÂ·tisÂ·tic \oÌ-Ëtis-tik\ adjective or noun. a variable developmental disorder that appears by age three and is characterized by impairment of the ability to form normal social relationships, by impairment of the ability to communicate with others, and by stereotyped behavior patterns.
Other organizations have established a variety of alternative definitions for their standard reference conditions. In chemistry, IUPAC has established two standards: standard temperature and pressure (STP) as a temperature of 273.15 K (0 Â°C, 32 Â°F) and an absolute pressure of exactly 100 kPa (1 bar).
Definition. Unit for estimating the demand for energy required for heating or cooling. In the US, the typical standard indoor temperature is 65ÂºF (18.3ÂºC). For each 1ÂºF decrease or increase from this standard in the average outside temperature one heating or cooling degree day is recorded.efinition. Unit for estimating the demand for energy required for heating or cooling. In the US, the typical standard indoor temperature is 65ÂºF (18.3ÂºC). For each 1ÂºF decrease or increase from this standard in the average outside temperature one heating or cooling degree day is recorded.