binary compound
Fidelity to one's lord or master; the feudal obligation by which the tenant or vassal was bound to be faithful to his lord. / The oath by which this obligation was assumed.
(chemistry) A chemical compound composed of only two elements. / (chemistry) A compound composed of an element and a radical (a group of atoms that behave as one piece).
A tower in which a bell (or set of bells) is hung; a belfry.
present participle of reauthenticate
その化学者は、イオン伝導度が非常に高い新しい二元化合物を単離した。
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