downward mobility the movement of a person or group to a lo...
medial adj. toward or at the middle of the body or of an or...
family planning controlling the size of the family, especia...
melancholia agitata a 19th-century term for catatonic excit...
phenotype n. the observable characteristics of an individua...
nightmare disorder in DSM–IV–TR and DSM–5, a sleep disorder...