(a) a screw designed to be turned with the fingers, typically having a winged or ridged head to give purchase (cf. thumbscrew, n. 1); (b) an…
| 单词 | θ213112 |
| 释义 | society > occupation and work > equipment > building and constructing equipment > fastenings > [noun] > screw > for turning with finger and thumb (3) finger screw1768 (a) a screw designed to be turned with the fingers, typically having a winged or ridged head to give purchase (cf. thumbscrew, n. 1); (b) an… thumbscrew1795 A screw with a flattened or winged head, adapted for being turned with the thumb and fingers; a butterfly screw; also a small clamp adjusted by… butterfly screw1861 a bolt having two flat protections, thought to resemble wings, either side of the head which allow the bolt to be turned by hand. |
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