| flittering scotoma | A localised area of blindness edged by brilliantly coloured shimmering lights (teichopsia); usually a prodromal symptom of migraine. See: fortification spectrum. Synonym: flittering scotoma. (05 Mar 2000) |
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| flittermouse | <zoology> A bat; called also flickermouse, flindermouse, and flintymouse. Origin: Flitter, v.i. + mouse; cf. G. Fledermaus, OHG. Fledarms. Cf. Flickermouse, Flindermouse. Source: Websters Dictionary (01 Mar 1998) |
| flittern | A term applied to the bark obtained from young oak trees. Source: Websters Dictionary (01 Mar 1998) |