pilot lampn.
/ˈpʌɪlət lamp/, U.S. /ˈpaɪlət ˌlæmp/ = pilot light n. 1b.
ΘΚΠ
the world > matter > light > artificial light > an artificial light > artificial light defined by light-source > electric light > [noun] > used to indicate that something is switched on
pilot lamp1884
pea lamp1921
pilot light1929
pilot1973
1884 Jrnl. Soc. Telegraph-engineers & Electricians 13 515 As the speed began to increase, the lamp lit up intermittently, but in a few seconds more the machines dropped into step together, and the pilot lamp lit up to full brightness and became perfectly steady.
1901 Chambers's Jrnl. Sept. 618/1 An incandescent lamp connected direct to the terminals of the dynamo—usually termed a ‘pilot lamp’—will assist the attendants in keeping the pressure constant.
1943 Sci. & Mech. Spring 143/1 Pilot lamps ordinarily serve the dual purpose of illuminating the tuning dial and indicating when the receiver is turned on.
1991 Photo Answers Apr. 70 (caption) Self timer pilot lamp illuminates when self timer is in operation.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
<
n.1884- secondary hardening
- secondary hardness
- secondary industry
- secondary legislation
- secondary marriage
- secondary modern
- secondary modern school
- secondary movable
- secondary neolithic
- secondary oocyte
- secondary planet
- secondary poverty
- secondary quill
- secondary ray
- secondary recovery
- secondary reinforcement
- secondary reinforcer
- secondary reward
- secondary road
- secondary school
- secondary shaft
- secondary smoke
- secondary smoking
- secondary spectrum
- secondary spermatocytes