Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
We have telescopes and observatories that operate at X-ray, gamma ray and ultraviolet, but at this low-rated frequency, you have to go to the opposite side of the moon in order for it to be radio-quiet.”
Source: https://boulderweekly.com/news/windows-to-the-cosmos/