noun Download 🔗Share A celestial body consisting mainly of ice, dust and gas in a (usually very eccentric) orbit around the Sun and having a "tail" of matter blown back from it by the solar wind as it approaches the Sun. Examples : "Last night, we learned in science class that comets are icy objects from space that sometimes develop bright tails when they get close to the sun. " astronomy space physics science phenomena Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A celestial phenomenon with the appearance given by the orbiting celestial body. Examples : "Looking through the telescope, the student saw faint, glowing comets streaking across the night sky. " astronomy space phenomena world nature Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share Any of several species of hummingbird found in the Andes. Examples : "While hiking in the Andes, we hoped to spot some comets flitting amongst the high-altitude flowers. " animal bird organism Chat with AIVocabulary GamePractice Reading
