a waterproof container for taking samples of ocean water, several usually being lowered open on a line and each being closed at the desired depth by the action of a falling weight.
an instrument used by oceanographers for obtaining samples of sea water from a desired depth
An ocean-water sampling bottle with spring-loaded valves at both ends that are closed at an appropriate depth by a messenger device sent down the wire connecting the bottle to the surface. The Nansen bottle has been replaced by the Niskin bottle, which is made of plastic and thus does not corrode like Nansen’s metal bottle. These plastic bottles, however, are frequently referred to as Nansen bottles because their basic design is the same. The Nansen bottle was named for its inventor, Norwegian explorer Fridtjof Nansen (1861-1930).
[nahr-see-een, -in] /ˈnɑr siˌin, -ɪn/ noun, Pharmacology. 1. a narcotic alkaloid, C 2 3 H 2 7 NO 8 , occurring in opium and acting as a mild relaxant on smooth muscle. /ˈnɑːsiːn/ noun 1. a narcotic alkaloid that occurs in opium. Formula: C23H27O8N
[nahr-suh-siz-em] /ˈnɑr səˌsɪz ɛm/ noun 1. inordinate fascination with oneself; excessive self-love; vanity. Synonyms: self-centeredness, smugness, egocentrism. 2. Psychoanalysis. erotic gratification derived from admiration of one’s own physical or mental attributes, being a normal condition at the infantile level of personality development. /ˈnɑːsɪˌsɪzəm/ noun 1. an exceptional interest in or admiration for oneself, esp one’s […]
[nahr-suh-sis-tik] /ˌnɑr səˈsɪs tɪk/ adjective 1. having an undue fascination with oneself; vain. 2. Psychoanalysis. tending to derive erotic gratification from admiration of one’s own physical or mental attributes. adj. 1912, see narcissism + -istic. Sometimes erroneously as narcistic. Related: Narcissistically.
noun, Psychiatry. 1. a personality disorder characterized by extreme self-centeredness and self-absorption, fantasies involving unrealistic goals, an excessive need for attention and admiration, and disturbed interpersonal relationships.