ETYM Latin derivatio: cf. French dérivation. Related to Derive.
The source of a word or expression. English words are derived from a variety of other languages (see borrowing), especially Greek, Latin, Anglo-Saxon, and, after the Norman Conquest, French.
Many current expressions have survived the practices that gave rise to them; they are dead metaphors. “Getting the sack”, for instance, is derived from the time when workers brought their own tools in a sack. “Get your sack” meant you had lost your job.
1. (Descriptive linguistics) The process whereby new words are formed from existing words or bases by affixation: 'singer' from 'sing'; 'undo' from 'do'.
2. A line of reasoning that shows how a conclusion follows logically from accepted propositions.
3. Drawing of fluid or inflammation away from a diseased part of the body.
4. Drawing off water from its main channel as for irrigation.
5. The source from which something derives (i.e. comes or issues).
Sinonimi: electrical shunt
ETYM Cf. Dutch schuinte slant, slope, declivity. Related to Shunt.
In electrical engineering, a conductor of very low resistance that is connected in parallel to an ammeter in order to enable it to measure larger electric currents. Its low resistance enables it to act like a bypass, diverting the extra current through itself and away from the ammeter, and thereby reducing the instrument's sensitivity.
1. A low-resistance conductor connected in parallel with a device to divert a fraction of the current; SYN. electrical shunt.
2. A passage by which a bodily fluid (especially blood) is diverted from one channel to another.
3. Tube made of plastic or rubber; for draining fluids within the body.