a U.S. two-stage, solid-propellant rocket used to boost a relatively heavy spacecraft from a low earth orbit into a planetary trajectory or an elliptical transfer orbit.
- Inertia-reel seat belt
noun 1. a type of car seat belt in which the belt is free to unwind from a metal drum except when the drum locks as a result of rapid deceleration
- Inertia selling
noun 1. (in Britain) the illegal practice of sending unrequested goods to householders followed by a bill for the price of the goods if they do not return them
- Inertia time
inertia time n. The interval elapsing between the reception of the stimulus from a nerve and the contraction of the muscle.
[in-urt, ih-nurt] /ɪnˈɜrt, ɪˈnɜrt/ adjective 1. having no inherent power of action, motion, or resistance (opposed to ): inert matter. 2. Chemistry. having little or no ability to react, as nitrogen that occurs uncombined in the atmosphere. 3. Pharmacology. having no pharmacological action, as the excipient of a pill. 4. inactive or sluggish by habit […]