noun🔗Share彗星のコマ、塵の雲A cloud of dust surrounding the nucleus of a comet."As the comet neared the sun, its comae, a fuzzy cloud of dust and gas, became increasingly visible through telescopes. "彗星が太陽に近づくにつれて、そのコマ、つまり塵とガスのぼやけた雲が、望遠鏡を通してますます見えるようになりました。astronomyspacesciencephysicsnatureChat with AIVocabulary GamePractice Reading
noun🔗Shareコマ収差A defect characterized by diffuse, pear-shaped images that in an ideal image would appear as points."The cheap telescope produced images with noticeable comae, causing the stars near the edge of the field of view to appear as blurry, comet-like streaks instead of sharp points. "安物の望遠鏡は、コマ収差が目立つ画像を生成し、視野の端近くの星が鮮明な点ではなく、ぼやけた彗星のような線として現れました。medicinephysicstechnicalChat with AIVocabulary GamePractice Reading
noun🔗Share房, 束A tuft or bunch, such as the assemblage of branches forming the head of a tree, a cluster of bracts when empty and terminating the inflorescence of a plant, or a tuft of long hairs on certain seeds."The dried comae atop the pineapple plant indicated that the fruit was nearing ripeness. "パイナップルの植物の上の乾燥した房は、果実が熟しに近づいていることを示しました。natureplantbiologypartChat with AIVocabulary GamePractice Reading
