from the GNU version of the Collaborative International Dictionary of English
- n. the space, reckoned in the direction of propagation, occupied by a complete wave or undulation, as of light, sound, etc.; the distance from a point or phase in a wave to the nearest point at which the same phase occurs.
Sorry, no etymologies found.
Half an hour after the radio room had started transmitting on Drift Ice Station Zebra's wave length and all without the slightest whisper by way of reply or acknowledgment, I had suggested to Commander Swanson that Zebra might possibly be able to hear us without having sufficient power to send a reply but that they might just conceivably let us have an acknowledgment some other way.
To speak of their accuracy in terms of the wave length of sodium light would be useless; a tenth-wave surface, representing hours of skilled human hand labor, would be jagged in comparison.