| 释义 |
extender|ɛkˈstɛndə(r)|
Also extendor.
[f. extend + -er1. In sense 3 a. AF. estendour, f. estendre to extend.]
One who, or that which, extends, in senses of the vb.
1. a. gen.
1611Cotgr., Extenseur, an extender..stretcher out at length. 1612Woodall Surg. Mate Wks. (1653) 154 The extenders raising their hands too high, or putting them down too low, etc. 1676Wiseman Chirurg. Treat. vii. i. 467 The Extension made, the Extenders are to be loosened gently. a1677Barrow Pope's Suprem. v. (1687) 176 The extenders of Empire are admired and commended. 1706A. Bedford Temple Mus. viii. 158 Pashta signifies an Extender of the Voice.
b. A substance added to paint or ink to increase its quantity or bulk, or to dilute its colour; also, a similar substance added to glue, etc.
1920F. H. Jennison Manuf. Lake Pigments (ed. 2) 53 There is a considerable difference between the base of a lake, and the filler or extender that is used in the paint trade to let down strong colours. 1957Brit. Commonw. Forest Terminol. ii. 67 Extender, a substance added by the user to synthetic resin glue to provide body... Some extenders, such as grain, clay or wood flours, may be relatively inert. Others, such as soluble dried blood can be used..both as an extender and as a supplementary glue. 1960World's Press News 16 Dec. 40 The relative ratio of pigment to extender in the solid portion of the ink is governed by several considerations. 1967Gloss. Paper/Ink Terms Letterpress Printing (B.S.I.) 9 Extenders, materials used by the ink maker or printer to adjust the colour strength and working properties of an ink.
†2. Of a muscle; = extensor. Obs.
1615Crooke Body of Man 782 The fourth muscle or the second extender..occupieth the outward part of the backside of the arme. 1666J. Smith Old Age (ed. 2) 65 Their origination may be..from the back..outwardly as the first extendor. 1771J. S. Le Dran's Observ. Surg. Gloss., Crureus Musculus, an Extender of the Tibia.
†3. A surveyor or valuer; esp. in Law, one who values land, etc., under a writ of extent. Obs.
[1292Britton iii. vii. §6 Et cele estente..soit enroullé et enselé desuth les seaus des estendours jurez. transl. This extent..shall be enrolled and sealed under the seals of the sworn extendors.] c1330R. Brunne Chron. (1810) 83 In his auhtend ȝere..Extendours he [William] sette forto extend þe land. 15..Skelton's Wks., Vox Populi 366 Framyng fynes for fermes..Withe inclosyers and extenders.
4. University Extender, a University Extension lecturer (see extension 9 g).
1893National Observer 11 Nov. 652/1 The University Extender is a familiar type. 189419th Cent. XXXVI. 207 The University Extender exults in the hapless ones who attend his ministrations. |