noun Download 🔗Share The eighth part of a circle; an arc of 45 degrees. Examples : "The protractor was marked into octants, each representing 45 degrees of a full circle. " math space area part Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share The aspect of two planets that are 45°, or one-eighth of a circle, apart. Examples : "Astronomers noted that Mars and Jupiter were in octants, suggesting a particular phase of their orbital relationship. " astronomy astrology number math space Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share The eighth part of a disc; a sector of 45 degrees; half a quadrant. Examples : "The pie chart, showing our family's monthly spending, was divided into eight octants, each representing a different category like rent, food, and entertainment. " math space part Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share An instrument for measuring angles, particularly of elevation. Examples : "The old sailor used his octant to measure the angle of the sun above the horizon, helping him determine his ship's latitude. " nautical technology astronomy science Chat with AIVocabulary GamePractice Reading