objective competitive situation a situation in which one or...
release zone the region of a presynaptic axon terminal wher...
iodopsin n. any one of three photopigments found in the ret...
moral realism the type of thinking characteristic of younge...
allopathy n. a system of medicine in which a disease or dis...
nanometer (symbol: nm) n. 10–9 m (i.e., one billionth of a...