Nissl method any one of certain techniques used to stain ne...
oculocerebrorenal syndrome a rare X-linked recessive disord...
ophthalmometer n. see keratometer.
photobiology n. the study of the effects of light on organi...
premoral stage 1. in Jean Piaget’s theory of moral developm...
heroin n. a highly addictive opioid that is a synthetic ana...