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Related to Anterior cranial fossa: Posterior cranial fossa, Middle cranial fossa

fos·sa 1

n. pl. fos·sae (fŏs′ē′) Anatomy
A small cavity or depression, as in a bone.

[Latin, ditch, from feminine past participle of fodere, to dig.]

fos′sate′ (fŏs′āt′) adj.

fos·sa 2

A catlike carnivorous mammal (Cryptoprocta ferox) of Madagascar, having reddish-brown fur, a long tail, long whiskers, and retractile claws.

[Malagasy fosa.]


n, pl -sae (-siː)
(Anatomy) an anatomical depression, trench, or hollow area
[C19: from Latin: ditch, from fossus dug up, from fodere to dig up]


(Animals) a large primitive catlike viverrine mammal, Cryptoprocta ferox, inhabiting the forests of Madagascar: order Carnivora (carnivores). It has thick reddish-brown fur and preys on lemurs, poultry, etc
[from Malagasy]


(ˈfɒs ə)

n., pl. fos•sae (ˈfɒs i)
a pit, cavity, or depression, as in a bone.
[1820–30; < Latin: ditch, fosse, short for fossa (terra) dug or dug out (earth), n. use of feminine of fossus, past participle of fodere to dig]


(ˈfɒs ə)

n., pl. -sas.
a large viverrid carnivore, Cryptoprocta ferox, of Madagascar. Also called fos′sa cat`.
[1830–40; < Malagasy]


A shallow depression.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.fossa - a concavity in a surface (especially an anatomical depression)fossa - a concavity in a surface (especially an anatomical depression)
glenoid cavity, glenoid fossa - the concavity in the head of the scapula that receives the head of the humerus to form the shoulder joint
glenoid fossa, mandibular fossa - a deep concavity in the temporal bone at the root of the zygomatic arch that receives the condyle of the mandible
bodily cavity, cavum, cavity - (anatomy) a natural hollow or sinus within the body
epigastric fossa, pit of the stomach - a slight depression in the midline just below the sternum (where a blow can affect the solar plexus)
concave shape, concavity, incurvation, incurvature - a shape that curves or bends inward
2.Fossa - monotypic genus of Madagascar civets closely related to palm civets
mammal genus - a genus of mammals
fanaloka, Fossa fossa - civet of Madagascar
3.fossa - largest carnivore of Madagascarfossa - largest carnivore of Madagascar; intermediate in some respects between cats and civets
viverrine, viverrine mammal - small cat-like predatory mammals of warmer parts of the Old World


n. L. fosa, cavidad, hueco, depresión;
___ glenoid___ glenoidea;
___ interpeduncular___ interpeduncular;
___ jugular___ yugular;
___ mandibular___ mandibular;
___ nasal___ nasal;
___ navicular___ navicular.


n fosa
References in periodicals archive ?
In decreasing order of prevalence, SNTCSs are also found in the orbit, skull base, cribriform plate, nasopharynx, and anterior cranial fossa.
As the anterior cranial fossa is the template that establishes the basic dimensions of the maxilla [Enlow, 1983], the deficiency in the maxillary arch can be secondary to the deficiency in the anterior cranial base.
Involvement of the anterior cranial fossa by the infective process was also present.
A computed tomographic scan of the mass demonstrated extensive remodeling of bone, including erosion of the inferomedial wall of the right orbit and the base of the anterior cranial fossa (Figure 1).
Diagnostic imaging identified a large JNA (Radkowski (6) stage IIIb and Fisch (7) stage IVb) that extended into the nasal cavities, sphenoid sinus, right maxillary sinus, clivus, pterygoid fossa, anterior cranial fossa, and right middle cranial fossa abutting the temporal lobe (figure 1, B).
Transfontanellar Doppler ultrasonography demonstrated two hyperechogenic areas; one extended from the left ventricle to the semioval center, and the other was spread over the left frontobasal area as a result of an anterior cranial fossa invasion through the posterior ethmoid sinus.
Magnetic resonance imaging (MRI) revealed extension of the mass into the extradural anterior cranial fossa (figure 1, B).
High-resolution computed tomography (CT) of the anterior cranial fossa demonstrated air in the cranial cavity, indicating a fracture or breach of the cribiform plate (figure 1).

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