noun🔗Share凹面、凹みA concave surface or curve."The inside of the bowl is a concave shape. "ボウルの内側は凹面になっています。architecturemathscienceChat with AIVocabulary GamePractice Reading
noun🔗Share天空のアーチThe vault of the sky."The vast concave of the night sky was dotted with stars. "夜空の広大な天空のアーチには星がちりばめられていた。astronomyspaceChat with AIVocabulary GamePractice Reading
noun🔗Shareプトレマイオスまたは地心説の世界モデルの天球の1つOne of the celestial spheres of the Ptolemaic or geocentric model of the world."Aristotle makes [Fire] to move to the concave of the Moon. - Thomas Salusbury (1661)."アリストテレスは[火]を月の凹面へと動かす。- トーマス・サルスベリー (1661)。astronomyworldspacetheorymythologyChat with AIVocabulary GamePractice Reading
noun🔗Share凹状要素An element of a curved grid used to separate desirable material from tailings or chaff in mining and harvesting."The miner carefully adjusted the concave in the sifting machine to better separate the gold from the gravel. "鉱夫は、金と砂利をより良く分離するために、選別機内の凹状要素を慎重に調整しました。agriculturemachineparttechnicalChat with AIVocabulary GamePractice Reading
noun🔗ShareコンケーブAn indentation running along the base of a surfboard, intended to increase lift."The concave on the bottom of the surfboard increases lift, making it easier to ride waves. "サーフボードの底にあるコンケーブは揚力を高め、波に乗るのを容易にします。sporttechnicalnauticalChat with AIVocabulary GamePractice Reading
noun🔗ShareコンケーブAn indented area on the top of a skateboard, providing a position for foot placement and increasing board strength."The concave on the skateboard allowed the skater to maintain a firm grip. "スケートボードのコンケーブは、スケーターがしっかりとしたグリップを維持するのに役立ちました。sporttechnicalstructurevehicledeviceChat with AIVocabulary GamePractice Reading
verb🔗Share凹ませるTo render concave, or increase the degree of concavity."The sculptor used a special tool to concave the inside of the bowl further, creating a deeper depression. "彫刻家は、ボウルの内側をさらに凹ませて、より深いへこみを作るために特別な道具を使いました。appearancestructuretechnicalChat with AIVocabulary GamePractice Reading
adjective🔗Share凹んだ, 凹面のCurved like the inner surface of a sphere or bowl"The inside of the soup bowl was concave, making it perfect for scooping up the last bits of soup. "スープボウルの内側は凹んでいて、スープの最後の部分をすくい上げるのに最適でした。appearanceChat with AIVocabulary GamePractice Reading
adjective🔗Share凹の(of a polygon) not convex; having at least one internal angle greater than 180 degrees."The shape of the garden plot was concave, with a large inward curve in one section. "庭の区画の形は凹で、ある区画には大きな内向きの曲線があった。mathtechnicalstructurescienceChat with AIVocabulary GamePractice Reading
adjective🔗Share凹の(of a real-valued function on the reals) satisfying the property that all segments connecting two points on the function's graph lie below the function."The graph of the student's test scores showed a concave pattern; each segment connecting two test scores lay below the curve. "生徒のテストスコアのグラフは凹型のパターンを示し、2つのテストスコアを結ぶ各線分は曲線の下にありました。mathfunctiontechnicalChat with AIVocabulary GamePractice Reading
adjective🔗Share凹んだ, くぼんだHollow; empty"The old, concave dish was almost empty after the family dinner. "古い、くぼんだ皿は、家族の夕食の後、ほとんど空っぽだった。appearancearchitectureanatomymathsciencetechnicalChat with AIVocabulary GamePractice Reading
