FOR 



167 



FOS 



ol>'-tur-alf'6r (L. foramen, an 

 aperture or opening ; obturator, 

 that which stops or closes up), 

 an oval opening in both sides of 

 the large bone that ends or closes 

 up the trunk ; the large oval 

 interval between the ischium and 

 the pubes : f. thyroid, ihlr'-oyd 

 (Gr. thureos, a shield ; eidos, 

 resemblance), one of the two 

 openings of the shield- like bones 

 which terminate the trunk ; same 

 as ' foramen obturator ' : f . caecum, 

 sek''Um (L. ccecus, blind), a small 

 opening which terminates below 

 the frontal crest of the skull : f. 

 commune anterius, kom-mun'8 

 ant-er'i'US (L. communis, com- 

 mon ; anterior, that which is 

 placed before from ante, before), 

 the anterior common foramen, 

 an opening under the arch of the 

 fornix: f. commune posterius, 

 ptist-er'i'US (L. posterior, that 

 which is placed behind from 

 post, behind), the posterior 

 common foramen, an opening be- 

 tween the middle and the post- 

 erior commissure of the brain : 

 f. incisivum, in'-sis-iv'-urn (L. 

 incisivus, of or belonging to the 

 incisor teeth from inclsus, 

 notched, indented), the incisor 

 foramen ; the opening immedi- 

 ately behind the incisor teeth : 

 f. magnum occipitis, mag'num 

 dJc-sip'it-is (L. magnus, great; 

 occiput, the back part of the 

 head, occipitis, of the back part 

 of the head), the great foramen 

 of the occiput ; the great opening 

 at the under and fore part of the 

 occipital bone: f. ovale, dv-dl'e 

 (L. ovdlis, an oval), the oval 

 foramen or aperture between the 

 auricles of the foetal heart; an 

 oval aperture between the tym- 

 panum and the vestibule of the 

 ear: f. rotundus, rot-und'-us (L. 

 rotundus, round, circular), the 

 round or triangular aperture of 

 the internal ear. 

 Foraminifera, n. plu., for-am'-m- 



if'er-a (L. foramen, an aperture ; 

 fero, I carry), an Order o Proto- 

 zoa having shells perforated by 

 numerous pseudopodial apertures; 

 many-celled organisms : foramin- 

 iferous, a., fdr'am'in-if-er-us, 

 having many chambers or holes. 



forceps, n. plu., for'seps (L. for- 

 ceps, a pair of tongs, as ifferriceps 

 from ferrum, iron ; capio, I 

 take), a kind of tongs of various 

 sizes and shapes, used by surg- 

 eons, and by anatomists and 

 accoucheurs : forcipate, a. , fdr'- 

 sip'dt, in oot., forked like 

 pincers. 



formication, n., form'-ik-af-shun 

 (L. formica, an ant), a sensation 

 resembling that caused by ants 

 creeping on the skin. 



Fornasinia, n.,fdr'naS'in'-i'a (not 

 ascertained), a genus of plants, 

 Ord. Leguminosse, Sub - ord. 

 Papilionaceae: Fornasinia ebenif- 

 era, eb'-en-if-er-a (L. ZbZnus, the 

 eben tree, ebony ; fero, I bear), 

 produces a kind of ebony, a 

 papilionaceous plant found in 

 Catfraria. 



fornix, n., forn'-iks, fornices, n. 

 plu., ftirn'is-ez (L. fornix, an 

 arch, fornicis, of an arch), an 

 arched sheet of white longitudinal 

 fibres, which appears partly in 

 the floor of both lateral ventricles 

 of the brain, situated beneath 

 the corpus callosum ; in bot., 

 arched scales in the orifice of 

 some flowers : fornicate, a. , forn' 

 ik-dt (L. fornicdtus, arched), 

 arched. 



fossa, n., fos'sa, fossae, n. plu., 



fos'-se (L. fossa, a ditch ; fossus, 

 dug), in anat., a little cavity or 

 depression in a bone ; any depres- 

 sion in the human body : fossa 

 cystis fellesB, sist'-is fU'-le-e, (Gr. 

 kustis, a bladder, a pouch ; L. 



felleus, pert, to the gall from 



fel, the gall-bladder), the fossa 

 of the gall-bladder, a shallow 

 oblong cavity on the under sur- 

 face of the right lobe of the liver 



