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Related to 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 ?
But in June this year, just as she was about to start nursery at Whitehouse Primary School, Amelia began to show similar symptoms and doctors discovered a cyst in the posterior cranial fossa of the youngster's brain.
1) Several authors have described extraorbital extension of pseudotumor with involvement of paranasal sinuses, anterior and middle cranial fossa and infratemporal region.
We report a case involving a patient with bilateral middle cranial fossa encephaloceles extending into the middle ear and causing conductive hearing loss.
The medial aspect of the temporal bone may fail to develop, resulting in a persistent lateral craniopharyngeal canal (also known as the Sternberg canal) between the middle cranial fossa and the pneumatised inferolateral recess of the sphenoid sinus.
Intracranial dermoids can also be found in the posterior cranial fossa within or in close proximity to the fourth ventricle.
Henry Battle, in 1890, had originally associated mastoid ecchymoses with fracture of posterior cranial fossa of skull, not a middle fossa fracture.
Conveys sensation from the midface (upper teeth, gums, upper lip and cheeks, lower eyelid and the side of the nose), hard palate, maxillary sinus, part of the nasal mucosa, meninges of the middle cranial fossa.
Cranial base reconstruction with CPCs has been successful for translabyrinthine, middle cranial fossa, and suboccipital craniectomy defects, as well as for extensive temporal bone fractures (29).
Symptoms occur when a mucocele impinges on surrounding structures, including cranial nerves II through VI, the dura mater, the anterior cranial fossa, the pituitary gland, the cavernous sinus, the internal carotid artery, the pterygoid canal, the pterygoid nerve, the sphenopalatine artery, and the sphenopalatine ganglion.
The skull bones are malformed and the posterior cranial fossa is small.