> as lemmas
pretravel
pretravel n.
Brit. 
/(ˌ)priːˈtravl/
, /(ˌ)priːˈtravl/U.S. /ˌpriˈtræv(ə)l/
(the amount of) movement of a working part of a mechanism that occurs before a point of action is reached (cf. overtravel n.); frequently attributive./ˌpriˈtræv(ə)l/ΚΠ
1965 Wireless World Sept. 464/2 Pre-travel plunger movement is 0.050 in and up to 0.010 in overtravel is possible.
1966 Vision Res. 6 647 The RT [= reaction time] was timed by closure of a microswitch with calibrated pretravel of 0–6 mm performed by flexion of the right thumb.
1983 Buck & Hickman Catal. 1983–5 369 Has a special operated drive permitting plenty of over-travel and pre-travel as a stroke counter.
1999 Appliance Manufacturer (Nexis) 1 May 49 During actuation, pretravel is achieved when an overlay on top of the switch is first deformed to come into contact with the button.
2000 Tooling & Production (Nexis) 1 Feb. 60 Low pretravel variation..means measurements can be performed with equal precision from any direction.
<
as lemmas