| frontotemporal tract | A band of long association fibres reciprocally connecting the frontal and temporal lobes of the cerebrum, running caudally through the white matter of the frontal lobe, sharply curving ventrally under the stem of the sylvian fissure, and then fanning out to the cortex of the anterior half of the superior and middle temporal gyri. Synonym: fasciculus uncinatus, arcuate fasciculus, frontotemporal tract, hooked fasciculus, temporofrontal tract. (05 Mar 2000) |
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| frontotemporale | A craniometric point located at the most anterior point of the temporal line on the frontal bone. (05 Mar 2000) |
| frontotransverse position | A cephalic presentation of the foetus with its forehead directed toward the right (right frontotransverse, RFT) or to the left (left frontotransverse, LFT) iliac fossa of the mother. (05 Mar 2000) |
| frontozygomatic | Relating to the frontal and zygomatic bones. Synonym: frontomalar. (05 Mar 2000) |
| frontozygomatic suture | Line of union between the zygomatic process of the frontal and the frontal process of the zygomatic bone. Synonym: sutura frontozygomatica, sutura zygomaticofrontalis. (05 Mar 2000) |
| Froriep | August von, German anatomist, 1849-1917. See: Froriep's ganglion, Froriep's induration. (05 Mar 2000) |
| Froriep's ganglion | A temporary collection of nerve cells on the dorsal aspect of the hypoglossal nerve in the embryo; it represents a rudimentary sensory ganglion. (05 Mar 2000) |
| Froriep's induration | Induration of a muscle through an interstitial growth of fibrous tissue. Synonym: Froriep's induration, interstitial myositis, myofascitis. (05 Mar 2000) |
| frost | 1. To injure by frost; to freeze, as plants. 2. To cover with hoarfrost; to produce a surface resembling frost upon, as upon cake, metals, or glass. "While with a hoary light she frosts the ground." (Wordsworth) 3. To roughen or sharpen, as the nail heads or calks of horseshoes, so as to fit them for frosty weather. Origin: Frostted; Frosting. 1. The act of freezing; applied chiefly to the congelation of water; congelation of fluids. 2. The state or temperature of the air which occasions congelation, or the freezing of water; severe cold or freezing weather. "The third bay comes a frost, a killing frost." (Shak) 3. Frozen dew; called also hoarfrost or white frost. "He scattereth the frost like ashes." (Ps. Cxlvii. 16) 4. Coldness or insensibility; severity or rigidity of character. "It was of those moments of intense feeling when the frost of the Scottish people melts like a snow wreath." (Sir W. Scott) Black frost, cold so intense as to freeze vegetation and cause it to turn black, without the formation of hoarfrost. <physics> Frost bearer, a philosophical instrument illustrating the freezing of water in a vacuum; a cryophous. <botany> Frost grape, an American grape, with very small, acid berries. Frost lamp, a lamp placed below the oil tube of an Argand lamp to keep the oil limpid on cold nights; used especially in lighthouses. Frost nail, a nail with a sharp head driven into a horse's shoe to keen him from slipping. Frost smoke, an appearance resembling smoke, caused by congelation of vapor in the atmosphere in time of severe cold. "The brig and the ice round her are covered by a strange black obscurity: it is the frost smoke of arctic winters." (Kane) Frost valve, a valve to drain the portion of a pipe, hydrant, pump, etc, where water would be liable to freeze. Jack Frost, a popular personification of frost. Origin: OE. Frost, forst, AS. Forst, frost. Fr. Freosan to freeze; akin to D. Varst, G, OHG, Icel, Dan, & Sw. Frost. 18. See Freeze. Source: Websters Dictionary (01 Mar 1998) |
| frost itch | A recurrent eczema appearing with the advent of cold weather. Synonym: frost itch, lumberman's itch, pruritus hiemalis, winter itch. (05 Mar 2000) |
| Frost suture | Intermarginal suture between the eyelids to protect the cornea. (05 Mar 2000) |
| Frost, Albert | <person> U.S. Ophthalmologist, 1889-1945. See: Frost suture. (05 Mar 2000) |
| frost-blite | <botany> A plant of the genus Atriplex; orache. The lamb's-quarters (Chenopodium album). Source: Websters Dictionary (01 Mar 1998) |
| frostberg inverted-three sign | <radiology> Medial retraction of 2nd portion of duodenum, pancreatic carcinoma (less than10% of carcinoma's), acute pancreatitis, postbulbar ulcer disease (12 Dec 1998) |
| frostbird | <zoology> The golden plover. Source: Websters Dictionary (01 Mar 1998) |