me·a·tus

(mē-ā′təs)

n. pl. me·a·tus·es or meatus

A body opening or passage, such as the opening of the ear or the urethral canal.

[Latin meātus, passage, from past participle of meāre, to pass; see mei- in Indo-European roots.]

me·a′tal (-təl) adj.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

meatus

(mɪˈeɪtəs)

n, pl -tuses or -tus

(Anatomy) anatomy a natural opening or channel, such as the canal leading from the outer ear to the eardrum

[C17: from Latin: passage, from meāre to pass]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

me•a•tus

(miˈeɪ təs)

n., pl. -tus•es, -tus.

an opening, esp. in a bone or bony structure, as the ear or nose.

[1655–65; < Latin meātus course, channel]

me•a′tal, adj.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

meatus - a natural body passageway

passageway, passage - a path or channel or duct through or along which something may pass; "the nasal passages"

acoustic meatus, auditory canal, auditory meatus, ear canal, external auditory canal - either of the passages in the outer ear from the auricle to the tympanic membrane

nasal meatus - the passages in the nasal cavity formed by the projections of the nasal conchae

Translations

meato

méat

me·a·tus

n. meato, pasaje, abertura, apertura.

English-Spanish Medical Dictionary © Farlex 2012

meatus

n (pl meatus) meato

Mentioned in

References in periodicals archive

Bleeding farther back in the nose is known as a posterior bleed and is usually due to bleeding from Woodruff's plexus, a venous plexus situated in the posterior part of inferior meatus. [5] It is formed from the anastomoses of the sphenopalatine and pharyngeal arteries.

COMMON SITES OF BLEEDING IN EPISTAXIS

Keywords: Hydrocephalus, Urethral meatus, Ventriculoperitoneal shunt.

EXTRUSION FROM URETHRAL MEATUS AND MASSIVE PLEURAL EFFUSION - RARE COMPLICATIONS OF VENTRICULOPERITONEAL SHUNT

Among the latter, the turbinate obstructed the middle meatus in 16patients and did not obstruct it in 9 patients.

Endoscopic medialization middle turbinoplasty in endoscopic sinus surgery

Distant from the vaginal opening, the 4X4 cm perineal mass extended in the anteroinferior direction from the urethral meatus. As the mass extended towards both the urethra and front of the vagina, it appeared to be excisable.

Urethral Leiomyoma: A Case Report

It originates from the posterior wall of the urethra and protrudes from the external urethral meatus. These lesions have high visibility and are usually smaller than 1 cm (1).

A Rare Cause of Acute Urinary Retention: Urethral Caruncle/Nadir Bir Akut Uriner Retansiyon Sebebi: Uretral Karunkul

It consists of the auricle or pinna and the external acoustic meatus. The lateral surface of the auricle is irregularly concave, faces slightly forward, and displays numerous eminences and depressions.

Photogrammetric morphometric analysis of auricle

It has been suggested that the presence of foreign body in the external acoustic meatus is a marker for SOM in children (6).

Is it Merely Mischief or a Sign? Children with a Foreign Body in the External Acoustic Meatus

Her urethral meatus was slightly prominent and erythematous.

Urethral Caruncle Presented as Premature Menarche in a 4-Year-Old Girl

One of the main concerns relates to the possibility of an external acoustic meatus (EAM) collapse when supra-aural headphones are positioned.

Ear canal collapse prevalence and associated factors among users of a center of prevention and rehabilitation for disabilities

Physical examination revealed a retractable foreskin and two external meatus of a double urethra (Figure 2).

The Association of Congenital Urethral Duplication and Double Megalourethra

The main goals of open cavity mastoidectomy are to completely eradicate the disease, create a large enough meatus for examination and mastoid air cells, and provide a self-cleaning epithelized dry cavity, and achieve maximum hearing.

Meatal obstruction following canal wall down mastoidectomy

Background: Human papillomavirus (HPV)--induced lesions rarely develop in the urethral meatus (UM); however, their eradication can be problematic.

Comparison of the risk factors and HPV types in males with anogenital warts with and without involvement of the urethral meatus in western Iran