A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion detectors.
Recruitment (hiring) is a core function of human resource management. It is the first step of appointment. Recruitment refers to the overall process of attracting, shortlisting, selecting and appointing suitable candidates for jobs (either permanent or temporary) within an organization.
recruits; recruited; recruiting. Learner's definition of RECRUIT. 1. a : to find suitable people and get them to join a company, an organization, the armed forces, etc. [+ object] He was recruited by the army after high school. Public schools are recruiting new teachers. College football coaches spend a lot of time recruiting high school athletes.