ejection

(redirected from ejections)
Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.

e·jec·tion

(ē-jek'shŭn),
1. The act of driving or throwing out by physical force from within.
2. That which is ejected. Synonym(s): ejecta
[L. ejectio, from ejicio, to cast out]

ejection

/ejec·tion/ (e-jek´shun)
1. the act of casting out or the state of being cast out, as of excretions, secretions, or other bodily fluids.
2. something cast out.
3. the discharge of blood from the heart; see under period.

ejection

[ijek′shən]
Etymology: L, ejicere, to cast out
forceful expulsion, as of blood from a ventricle of the heart.

ejection

Cardiology See Ejection fraction, Ejection murmur Emergency medicine The throwing of a person from a vehicle.

e·jec·tion

(ē-jek'shŭn)
1. The act of driving or throwing out by physical force from within.
2. That which is ejected.
Synonym(s): ejecta.
[L. ejectio, from ejicio, to cast out]

e·jec·tion

(ē-jek'shŭn)
1. Driving or throwing out by physical force from within.
2. That which is ejected.
[L. ejectio, from ejicio, to cast out]

ejection

forcible expulsion through a narrow orifice.

ejection fraction
of the cardiac stroke volume equals the ratio of the stroke volume to the end-diastolic volume.
milk ejection
see letdown.
ventricular ejection time
that part of the cardiac ventricular contraction time when blood is actually discharged through the semilunar valves.
References in periodicals archive ?
The new ejection seats are already being retrofitted into the existing fleet, and the lightweight helmets are available in pre-production now, while full production starts later this year.
NASA's twin Solar Terrestrial Relations Observatory, or STEREO, spacecraft are providing the unique scientific tool to study these ejections as never before.
They show a coronal mass ejection that is shaped like a crescent moon as is lifts off the sun.
Besides taking pictures, each STEREO craft will record bursts of radio waves emitted by coronal mass ejections and solar flares.
Current ejection force equations are insufficient to apply to SL molds (e.
At a December meeting of the American Geophysical Union in San Francisco, California, a different solar process, the coronal mass ejection, was fingered as the cause of earthly magnetic storms.
At the conclusion of this contract, Teledyne will have produced over 8,500 ejection seat sequencer systems for the U.
Flacks, who has committed to UCLA, picked up his third ejection with about two minutes remaining in the game.
Also vulnerable are the metal pipes in oil and gas pipelines, where coronal mass ejections can cause voltage differences between the pipes and the surrounding soil, which accelerate corrosion.
Backman, who's already been fined by the league office for prior post- ejection antics, plans to request a copy of the umpires' incident report.
Tuesday's ejection was the third at the hands of Shane Alexander, who tossed Backman from a July 15 game against Rancho Cucamonga in which the JetHawks manager suffered a calf injury as he jumped out of the dugout.