Third-person singular simple present indicative form of pull-up

To unite for a common objective.

Alternative spelling of ring pull

Alternative spelling of pulverization

(baseball) To throw an off-speed pitch, a change up, to cause the hitter to swing early and miss.

A jet engine driven by repeated detonations within the engine.

To contribute toward a group effort.

(Britain) Alternative spelling of pulse dialing

(anatomy) Visceral pleura.

(medicine) A non-invasive method allowing the monitoring of the oxygenation of a patient's hemoglobin, using a sensor placed on a thin part of the patient's anatomy, usually a fingertip or earlobe.