Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A fluorescent lamp that emits a spectrum of light similar to that of the sun, used to grow plants indoors. Also called grow lamp.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An electric lamp designed to promote plant growth by emitting an electromagnetic spectrum appropriate for photosynthesis.

Etymologies

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Examples

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