meatus


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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.

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]

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:
Noun1.meatus - a natural body passagewaymeatus - 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

me·a·tus

n. meato, pasaje, abertura, apertura.

meatus

n (pl meatus) meato
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.
Among the latter, the turbinate obstructed the middle meatus in 16patients and did not obstruct it in 9 patients.
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.
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).
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.
It has been suggested that the presence of foreign body in the external acoustic meatus is a marker for SOM in children (6).
Her urethral meatus was slightly prominent and erythematous.
One of the main concerns relates to the possibility of an external acoustic meatus (EAM) collapse when supra-aural headphones are positioned.
Physical examination revealed a retractable foreskin and two external meatus of a double urethra (Figure 2).
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.
Background: Human papillomavirus (HPV)--induced lesions rarely develop in the urethral meatus (UM); however, their eradication can be problematic.