ether

unzählbar

A noun referring to a theoretical medium once believed to permeate space and transmit light waves, or a volatile chemical compound used as a solvent or anesthetic.

ruСуществительное, обозначающее теоретическую среду, которая, как считалось ранее, пронизывает пространство и передает световые волны, или летучее химическое соединение, используемое в качестве растворителя или анестетика.esSustantivo que designa el medio teórico que, según se creía antiguamente, llenaba el espacio y servía para transmitir las ondas de luz, o bien un compuesto químico volátil utilizado como disolvente o anestésico.frNom désignant soit un milieu théorique que l'on croyait autrefois remplir l'espace et transmettre les ondes lumineuses, soit un composé chimique volatil utilisé comme solvant ou anesthésique.deSubstantiv, das den hypothetischen Stoff bezeichnet, von dem man früher annahm, dass er den Raum durchdringt und Lichtwellen überträgt, oder eine flüchtige chemische Verbindung, die als Lösungsmittel oder Narkosemittel verwendet wird.ptSubstantivo que designa um meio teórico que se acreditava permear o espaço e transmitir as ondas luminosas, ou um composto químico volátil usado como solvente ou anestésico.zh指一种曾被假设为充满空间并传递光波的介质，也指一种易挥发的化合物，常用作溶剂或麻醉剂。arاسم يشير إلى وسط نظري كان يُعتقد أنه يملأ الفضاء وينقل موجات الضوء، أو إلى مركب كيميائي طيار يُستخدم كمذيب أو مخدر.

1. Chemical compound C1 formal scientific

   A volatile, highly flammable liquid used as an anesthetic and solvent.

   • The chemist stored the ether in a sealed container.
   • Ether was historically used as a general anesthetic during surgery.
   • The laboratory uses diethyl ether as a solvent for organic reactions.

   ruЭфирesÉter (compuesto químico)frétherdeEtherptÉterzh乙醚arإيثر

   Synonyme: diethyl etherethoxyethaneethyl ether

2. Physics concept C2 formal scientific

   A hypothetical medium formerly believed to fill all space and transmit electromagnetic waves.

   • 19th-century physicists proposed the existence of the luminiferous ether.
   • The Michelson-Morley experiment failed to detect the ether.
   • Einstein's theory of relativity eliminated the need for the ether concept.

   ruЭфирeséter (física)frÉther (physique)deÄtherptÉterzh以太arالأثير

   Synonyme: aether

3. Poetic or literary term C2 formal

   The clear sky; the upper regions of air beyond the clouds.

   • The birds soared into the ether.
   • The poet wrote of the ether as a realm of pure light.
   • The stars twinkled in the vast ether above.

   ruЭфирeséter (poético)fréther (sens poétique/littéraire)deÄtherptÉterzh苍穹arالأثير

   Synonyme: azureblueempyreanfirmamentskywelkin

• ethers plural form
• ethers' possessive plural form
• ether's possessive singular form