noun🔗Share封筒A paper or cardboard wrapper used to enclose small, flat items, especially letters, for mailing."My sister used brightly colored envelopes to mail her thank-you notes to her friends. "妹は、友人たちに感謝の手紙を送るために、明るい色の封筒を使いました。stationerycommunicationChat with AIVocabulary GamePractice Reading
noun🔗Share封筒Something that envelops; a wrapping."She stacked the envelopes before putting the letters inside. "彼女は手紙を入れる前に封筒を積み重ねた。stationerymaterialChat with AIVocabulary GamePractice Reading
noun🔗Shareエンベロープ、気球の袋A bag containing the lifting gas of a balloon or airship; fabric that encloses the gas-bags of an airship."The engineers carefully inspected the airship's envelopes for any leaks before the flight. "技術者たちは、飛行前に飛行船のエンベロープに漏れがないか注意深く検査しました。vehiclenauticaltechnicalmachinepartChat with AIVocabulary GamePractice Reading
noun🔗Share包絡線A mathematical curve, surface, or higher-dimensional object that is the tangent to a given family of lines, curves, surfaces, or higher-dimensional objects."The light trails from many fireflies, when viewed together, appear to define envelopes that trace the shape of the bushes they surround. "多くのホタルの光跡は、一緒に見ると、それらが囲む茂みの形をトレースする包絡線を定義しているように見える。mathtechnicalChat with AIVocabulary GamePractice Reading
noun🔗ShareエンベロープA curve that bounds another curve or set of curves, as the modulation envelope of an amplitude-modulated carrier wave in electronics."The technician studied the envelopes of the radio signals, searching for any sudden changes in amplitude. "技術者は、振幅の急な変化を探して、無線信号のエンベロープを調べました。electronicstechnologyphysicsmathtechnicalsignalChat with AIVocabulary GamePractice Reading
noun🔗ShareエンベロープThe shape of a sound, which may be controlled by a synthesizer or sampler."The synthesizer allows you to adjust the envelopes of the drum sounds, making them short and punchy or long and sustained. "シンセサイザーを使用すると、ドラムサウンドのエンベロープを調整でき、短くパンチの効いたサウンドや長く持続するサウンドにすることができます。musicsoundelectronicstechnologysignalChat with AIVocabulary GamePractice Reading
noun🔗Share封筒The information used for routing a message that is transmitted with the message but not part of its contents."The email envelopes contain addressing and security information the system needs to deliver the message, but the recipient only sees the actual email content. "メールの封筒には、システムがメッセージを配信するために必要なアドレスとセキュリティ情報が含まれていますが、受信者は実際のメールの内容しか見ません。communicationtechnologyinternetcomputingsignalChat with AIVocabulary GamePractice Reading
noun🔗Shareエンベロープ、包みAn enclosing structure or cover, such as a membrane; a space between two membranes"The virus has protein envelopes that help it enter cells. "ウイルスは細胞への侵入を助けるタンパク質エンベロープを持っています。anatomybiologymedicinestructureChat with AIVocabulary GamePractice Reading
noun🔗Share限界、範囲The set of limitations within which a technological system can perform safely and effectively."The safety envelopes for the new amusement park ride clearly state the maximum height and weight allowed for each passenger. "新しい遊園地の乗り物の安全限界は、各乗客に許可される最大身長と体重を明確に示しています。technologysystemtechnicalChat with AIVocabulary GamePractice Reading
noun🔗ShareコマThe nebulous covering of the head or nucleus of a comet; a coma."Through the telescope, the comet's envelopes, glowing faintly, expanded as it approached the sun. "望遠鏡を通して、かすかに光る彗星のコマは、太陽に近づくにつれて広がった。astronomyspaceChat with AIVocabulary GamePractice Reading
noun🔗Share封筒, 包囲土塁An earthwork in the form of a single parapet or a small rampart, sometimes raised in the ditch and sometimes beyond it."Because the attack came from multiple directions, the defenders built envelopes around the outer fort, creating additional layers of protection. "攻撃が複数の方向から来たため、守備側は外側の要塞の周囲に包囲土塁を築き、追加の防御層を形成しました。militaryarchitectureChat with AIVocabulary GamePractice Reading
