noun, Optics, Photography.
(photog) another name for f-number
- Focal reaction
focal reaction n. A limited reaction that occurs at the point of entrance of an infecting organism or of an injection. Also called local reaction.
- Focal segmental glomerulosclerosis
focal segmental glomerulosclerosis n. Segmental collapse of glomerular capillaries with thickened basement membranes and increased mesangial matrix, seen sometimes in nephrotic syndrome or mesangial proliferative glomerulonephritis.
noun, Pathology. 1. an epileptic manifestation arising from a localized anomaly in the brain, as a small tumor or scar, and usually involving a single motor or sensory mechanism but occasionally spreading to other areas and causing convulsions and loss of consciousness.
[fosh; French fawsh] /fɒʃ; French fɔʃ/ noun 1. Ferdinand [fer-dee-nahn] /fɛr diˈnɑ̃/ (Show IPA), 1851–1929, French marshal. /French fɔʃ/ noun 1. Ferdinand (fɛrdinɑ̃). 1851–1929, marshal of France; commander in chief of Allied armies on the Western front in World War I (1918)