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 classic literature ?
While the ear of the former has an external opening, that of the latter is entirely and evenly covered over with a membrane, so as to be quite imperceptible from without.
Like many of the man-made caves of Pellucidar, this one consisted of three chambers, one behind another, and all unlit except for what sunlight filtered in through the external opening.
A 3-month-old girl with an uncomplicated birth history presented with a 3-week history of a persistent green malodorous drainage from a small external opening on the right side of her neck.
The external opening is usually easy to identify and gentle pressure around the lesion will often produce a bead of pus.
An artificial external opening was created into the stomach for nutritional support.