| hygrometer | <physics> An instrument for measuring the degree of moisture of the atmosphere. Daniell's hygrometer, a form of hygrometer consisting of a bent glass tube terminating in two bulbs, the one covered with muslin, the other of black glass, and containing ether and a thermometer. Ether being poured on the muslin, the black ball, cooled by the evaporation of the ether within, is soon covered with dew; at this moment, the inclosed thermometer gives the dew-point, and this, compared with the reading of one in the air, determines the humidity. Origin: Gr. Wet, moist: cf. F. Hygrometre. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| recording | Keeping a record or a register; as, a recording secretary; applied to numerous instruments with an automatic appliance which makes a record of their action; as, a recording gauge or telegraph. Source: Websters Dictionary (01 Mar 1998) |
| videodisc recording | The storing of visual and usually sound signals on discs for later reproduction on a television screen or monitor. (12 Dec 1998) |
| video recording | The storing or preserving of video signals for television to be played back later via a transmitter or receiver. Recordings may be made on magnetic tape or discs (videodisc recording). (12 Dec 1998) |
| videotape recording | Recording of visual and sometimes sound signals on magnetic tape. (12 Dec 1998) |
| clinical recording | Making a record in tabular or graph form of the progress of a patient's condition. Synonym: clinical recording. (05 Mar 2000) |
| single channel recording | Variant of patch clamp technique. (18 Nov 1997) |
| depth recording | Study of subcortical cerebral electrical activity after placing electrodes in these areas. (05 Mar 2000) |
| tape recording | Recording of information on magnetic or punched paper tape. (12 Dec 1998) |