- a pit, cavity, or depression, as in a bone.
Origin of fossa1
1820–30; < Latin: ditch, trench, fosse, short for fossa (terra) dug or dug out (earth), noun use of feminine of fossus, past participle of fodere to dig
- a forest-dwelling genetlike mammal, Cryptoprocta ferox, of the civet family, native to Madagascar, with a short coat of white, black, gray, or brown: now rare.
Origin of fossa2
1830–40; < Malagasy; compare earlier fossane (< French < Malagasy)
Also called fossa cat.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for fossa
This ridge and fossa are on the lateral surface of the ramus.
Between the helix and the antihelix is the fossa of the helix.
The second gives the best text of Odassi, Fossa, and the Virgiliana.Renaissance in Italy: Italian Literature
John Addington Symonds
Its development, enormous in the carnivora, is such that the muscle projects beyond its fossa.Artistic Anatomy of Animals
There was already a perceptible fulness, with dulness on percussion, in the fossa, and some febrile excitement.
- an anatomical depression, trench, or hollow area
C19: from Latin: ditch, from fossus dug up, from fodere to dig up
- 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
- A small longitudinal cavity or depression, as in a bone.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.