noun🔗ShareA medical instrument used during an examination to dilate an orifice."The doctor used a speculum to examine the patient's throat. "medicinedevicebodyanatomyorganutensilChat with AIVocabulary GamePractice Reading
noun🔗ShareA mirror, especially one used in a telescope."The astronomer carefully cleaned the telescope's speculum to remove any dust that could distort the images of distant stars. "technologyastronomydevicescienceChat with AIVocabulary GamePractice Reading
noun🔗ShareA bright, lustrous patch of colour found on the wings of ducks and some other birds, usually situated on the distal portions of the secondary quills, and much more brilliant in the adult male than in the female."While birdwatching at the pond, we noticed the male mallard's vibrant, iridescent speculum flashing in the sunlight as he flapped his wings. "animalbirdcolornaturebiologyappearanceanatomyChat with AIVocabulary GamePractice Reading
noun🔗ShareA lookout place."From the hill, the abandoned watchtower served as a speculum, allowing us to see for miles across the valley. "architectureplacebuildingChat with AIVocabulary GamePractice Reading
