opening

[o´pen-ing]

a gap or open space; anatomic nomenclature for various types of openings includes aditus, aperture, foramen, fossa, hiatus, inlet, meatus, orifice, ostium, and outlet.

aortic opening

1. the aperture in the diaphragm for passage of the descending aorta.

2. aortic orifice.

cardiac opening the opening from the esophagus into the stomach.

pulmonary opening (opening of pulmonary trunk) pulmonary orifice.

pyloric opening the opening between the stomach and duodenum.

ap·er·ture

(ap'er-chūr),

1. Opening. An inlet or entrance to a cavity or channel. In anatomy, a gap or hole.
See also: fossa, ostium, orifice, pore. Synonym(s): apertura [TA]

2. The diameter of the objective of a microscope.

Synonym(s): aditus [TA]

[L. apertura, an opening]

Farlex Partner Medical Dictionary © Farlex 2012

in·let

(in'lĕt) [TA]

A passage leading into a cavity.
Synonym(s): aditus [TA] .

ap·er·ture

(ap'ĕr-chŭr) [TA]

1. An inlet or entrance to a cavity or channel; in anatomy, an open gap or hole.

2. The diameter of the objective of a microscope.
Synonym(s): aditus [TA] , apertura [TA] .

[L. apertura, an opening]

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

ap·er·ture

(ap'ĕr-chŭr) [TA]

1. [TA] Opening. An inlet or entrance to a cavity or channel. In anatomy, a gap or hole.
Synonym(s): apertura.

2. The diameter of the objective of a microscope.
See also: fossa, ostium, orifice
Synonym(s): aditus [TA] .

[L. apertura, an opening]

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References in periodicals archive

That vision fits well with Aditus' corporate strategy, Miller agreed.

Working with Aditus "will complete our Canadian strategy," said Mike Veitch, president of CWO&O.

Before NAFTA, the high tax liabilities made doing business in Canada "almost prohibitive" said Jim Miller, director of sales for Aditus. Since the agreement passed, Miller has seen a "flood of interest" from U.S.-based companies.

CWO&O in pact with Southam marketing unit