(social sciences) One doing participant observation.

plural of participant observer

plural of participant-observer

A percentage of net income (rather than gross income) paid to somebody who has contributed to the making of a film.

Alternative form of participant observer

Alternative form of nonparticipation

plural of non-participation

(usually science fiction) The use of technology in a way expected to change the course of human evolution.

An athlete participating in the Olympic Games under the Olympic flag, i.e. without representing any nation, either because the athlete is stateless, or because their nation has no international recognition or is banned.

(chemistry) Any of many effects in organic chemistry in which the course of a reaction, or its rate, is affected by the presence of a neighbouring functional group; anchimeric assistance