n. [ Aëro- + Gr. &unr_; voice. ] (a) A form of combined speaking and ear trumpet. (b) An instrument, proposed by Edison, for greatly intensifying speech. It consists of a phonograph diaphragm so arranged that its action opens and closes valves, producing synchronous air blasts sufficient to operate a larger diaphragm with greater amplitude of vibration. [ Webster 1913 Suppl. ]
(n) electro-acoustic transducer for converting electric signals into sounds; it is held over or inserted into the ear, Syn.headphone, earpiece, phone, Example: it was not the typing but the earphones that she disliked
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แสดงได้ทั้งความหมายของคำเดี่ยว และคำผสม ได้อย่างถูกต้อง
เช่น Secretary of State=รัฐมนตรีต่างประเทศของสหรัฐฯ (ในภาพตัวอย่าง),
High school=โรงเรียนมัธยมปลาย
