(aviation) The air traffic control practice of controlling aircraft whose positions are determined by direct radar observation.

An exterminator; a worker in pest control.

plural of pest controller

A parallel experiment designed to replicate the main experiment in every way, except in respect of the one variable that is being tested, so as isolate the effect of that variable; for example, an experiment in which subjects are given a placebo instead of an active drug, intended to check that any observed benefits of the drug derive from the drug itself and not from other factors involved in its administration.

The ownership by an individual or entity of more than half a company's shares, giving them a voting majority and thus the ability to control decision-making at the company.

(software engineering) A system responsible for managing modifications and additions to digital works, giving each revision a time-stamp and showing its difference to the previous revision.

(military, law enforcement) The management and logistics of a military or paramilitary force.

Measures taken by a state or a bloc of states to monitor its borders and regulate the movement of people, animals, and goods across the border.

(aviation, countable) A system for controlling an aircraft's rotational or translational motion in one or more axes.

present participle of self-control