noun🔗ShareA clock made of two glass vessels connected by a narrow passage through which sand flows."After each game turn, invert the hourglass to reset the time limit for the next player."timedeviceutensilhistoryitemChat with AIVocabulary GamePractice Reading
noun🔗ShareA pointer, often shaped like an hourglass, indicating that the computer is busy."The hourglass on the computer screen showed that the program was still processing my photo. "computingtechnologyChat with AIVocabulary GamePractice Reading
