air mark
verb
[with object] To mark (a building or other feature) so as to be identifiable from the air; to provide (an identifying sign) in this way.
Origin
1920s; earliest use found in The Times.
- photoneutron
- photonic
- photonic crystal
- photonics
- photonovel
- photo-novelette
- photon rocket
- photon torpedo
- photonuclear
- photonymograph
- photo-offset
- photo op
- photo opportunity
- photoorganotroph
- photoorganotrophic
- photoorganotrophy
- photo-oxidation
- photo-oxidative
- photo-oxidise
- photo-oxidizable
- photo-oxidize
- photo-pass
- photopathy
- photopeak
- photoperiod