noun🔗ShareTierras altas, región montañosa(astrogeology) A rough upland or mountainous region of the Moon with a relatively high albedo."Looking at the full Moon through a telescope, we could see the dark, smooth maria and the brighter, rugged terra. "Al mirar la luna llena a través de un telescopio, pudimos ver los oscuros y lisos mares y la terra más brillante y accidentada.astronomygeologyspaceChat with AIVocabulary GamePractice Reading