plural of self-drilling screw

A form of British military uniform made of cotton drill, often used in tropical service.

(of marching bands) an internal competition used to practice marching commands, in which the last person caught improperly executing a command wins

(idiomatic) to examine information at another level or in greater detail; especially in a database, to navigate to a more detailed level or record

An organized practice to prepare occupants of an office, school or other public building for evacuation in the event of a fire.

A type of sea snail, Urosalpinx cinerea (and others in subfamily Ocenebrinae, such as genera Urosalpinx, Eupleura, and Ocenebra), that uses an eversible gland to soften its prey's shell, and then drill a hole in the shell to consume the oyster or other shellfish.

plural of oyster drill

To drill a hole through multiple assembled parts at once, so as to ensure that the parts align properly in the final assembly.

(US) The generic term for the principal instructor of fresh military recruits undergoing basic training in the various branches of the United States military, routinely abbreviated to the initialism DI; always filled by enlisted personnel (a sergeant or petty officer).

A machine tool in which a rotating cutter, usually a twist drill, is pushed into a workpiece to produce a hole.