orifice

(redirected from Orifices)
Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to Orifices: Body orifice

orifice

 [or´ĭ-fis]
1. the entrance or outlet of any body cavity.
2. any opening or meatus. adj., adj orific´ial.
aortic orifice the opening of the left ventricle into the aorta; called also aortic opening.
external urethral orifice urinary meatus.
internal urethral orifice the opening from the urinary bladder into the urethra at one corner of the trigone of the bladder.
left atrioventricular orifice (mitral orifice) the opening between the left atrium and ventricle of the heart.
pulmonary orifice (orifice of pulmonary trunk) the opening between the pulmonary trunk and the right ventricle of the heart; called also opening of pulmonary trunk.
right atrioventricular orifice (tricuspid orifice) the opening between the right atrium and ventricle of the heart.
ureteral orifice the opening of a ureter into the urinary bladder at one corner of the trigone of the bladder. Called also ureteral meatus.

or·i·fice

(or'i-fis), [TA] Avoid the mispronunciation or'ĭ-fĭ-sēz of the plural of this word.
Any aperture or opening.
See also: aperture, opening, os, ostium, meatus.
Synonym(s): orificium [TA]
[L. orificium]

orifice

/or·i·fice/ (or´ĭ-fis)
1. the entrance or outlet of any body cavity.
2. any opening or meatus.orific´ial

aortic orifice  the opening of the left ventricle into the aorta.
cardiac orifice  see under opening.
external urethral orifice  urinary meatus.
left atrioventricular orifice , mitral orifice the opening between the left atrium and ventricle of the heart.
pulmonary orifice , orifice of pulmonary trunk the opening between the pulmonary trunk and the right ventricle.
right atrioventricular orifice , tricuspid orifice the opening between the right atrium and ventricle of the heart.

orifice

(ôr′ə-fĭs, ŏr′-)
n.
An opening, especially to a cavity or passage of the body; a mouth or vent.

or′i·fi′cial (-fĭsh′əl) adj.

orifice

[ôr′ifis]
Etymology: L, orificium, opening
the entrance or outlet of any body cavity. Also called ostium. orificial, adj.

or·i·fice

(ōr'i-fis) [TA]
Any aperture or opening.
Synonym(s): orificium.
[L. orificium]

orifice

any opening or aperture.

or·i·fice

(ōr'i-fis) [TA]
Any aperture or opening.
[L. orificium]

orifice

1. the entrance or outlet of any body cavity.
2. any foramen, meatus or opening.
The names of most orifices are self-defining, e.g. atrioventricular, preputial. See also ostium.

atrioventricular orifice
the opening between the atria and ventricles.
cecocolic orifice
aperture through which the cecum connects with the colon.
ileocolic orifice
the communicating orifice between the ileum and the colon.
infundibular orifice
slit-like orifice at the ovarian end of the avian oviduct; positioned near the ovary so that it can grasp the newly extruded oocyte.
intrapharyngeal orifice
the orifice between the nasopharynx and oropharynx which is bounded by the palatopharyngeal arches.
nasomaxillary orifice
the slit-like opening between the maxillary sinus and the middle meatus of the nasal cavity.
omasoabomasal orifice
large, oval opening at the end of the omasal canal which communicates with the abomasum.
oviductal orifice
a slit-like opening in the avian urodeum.
pyloric orifice
aperture between the stomach and duodenum; opens infrequently, solely for the passage of ingesta.
ureteric orifice
paired orifices in the neck of the bladder.
References in periodicals archive ?
After the flame reaches the orifice, there is continuous ejection of hot products from the nozzle from both orifices for a significant time.
In our patient, the cystoscopy showed normal bilateral ureteral orifices, but the ectopic ureteral orifice could not be identified.
After sectioning all teeth 3 additional MB-2 canal orifices were located in the remaining 20 teeth these 3 canals were located neither with the traditional methods nor with the DOM evaluation thus total 33 of 50 MB-2 canals were actually present in maxillary first molar (Table 3).
Cystoscopy showed an ectopic right ureteral orifice just below the bladder neck (Fig 1).
It is important for clinicians to select the appropriate device size for implant and not to damage neighboring structures during the occluding the orifice of LAA (1, 3-6).
The values of the shear rate obtained for each orifice of the two orifices die are greater than that obtained for each orifice of the breaker plate, whereas the values obtained for the residence time in each orifice of the both configurations are similar.
The greatest difficulty regarding to the manufacturing of the orifices is to get the interior rounded edge between the capillary and the cone for the rounded orifice.
This obstruction is called an orifice plate and the overall process is called orifice measurement.
This component result in a hollow and thin liquid cone formation once the liquid comes out of the orifice of the atomizer.
The VF regulator comprises flexible orifices where metering areas are automatically controlled by a metering assembly in response to changes in liquid pressure.
Autoline II abrasive cutting heads now feature larger, relocated wear inserts for fast changes, abrasive inlets to easily connect abrasive feed lines, and weep holes to indicate if orifices need tightening.
Traditional "DOD" ink jet was (and remains) a simple technology whereby ink, under low pressure, is introduced to a printhead that uses a series of valved orifices.