Meaning of PST

WordNet Dictionary
	Definition:		[n]  standard time in the 8th time zone west of Greenwich, reckoned at the 120th meridian west; used in far western states of the United States
	Websites:
	Synonyms:		Pacific Standard Time, Pacific Time
	See Also:		civil time, local time, standard time
Biology Dictionary
	Definition:		A growth hormone found in pigs; injections of or implants containing this hormone cause pigs over 100 pounds to gain more muscle and less fat. In past years, the hormone was very expensive because it could only be taken from the pituitary glands of slaughtered pigs, but in the early '90s researchers learned how to genetically engineered the bacterium E. coli to produce it. The FDA has not yet approved this hormone for use. See also bovine somatotrophin.