from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun astronomy The zone around a
starwhere a planetcould experience temperatures like those on Earth, allowing for the possibleexistence of liquid water and of life.
from The American Heritage® Dictionary of the English Language, 4th Edition
[After the story of Goldilocks and the Three Bears, in which the young girl Goldilocks enters the bears' house during their absence, tastes their bowls of porridge, and finds one too hot, another too cold, but the last one just right.]
from Wiktionary, Creative Commons Attribution/Share-Alike License
So called because, like the third of the three bowls of porridge in the fairy tale Goldilocks, it is neither too hot nor too cold, but just right.
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