|a more formal name for ether|
|an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.|
|an extraordinary or unusual thing, person, or event; an exceptional example or instance.|
ethyl ether n.
See diethyl ether.
well-knownwell-known anesthetic, commonly called simply ether, an organic compound belonging to a large group of compounds called ethers; its molecular structure consists of two ethyl groups linked through an oxygen atom, as in C2H5OC2H5.
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