| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024phon (fon),USA pronunciation n. - Physicsa unit for measuring the apparent loudness of a sound, equal in number for a given sound to the intensity in decibels of a sound having a frequency of 1000 cycles per second when, in the judgment of a group of listeners, the two sounds are of equal loudness.
- Greek phōné̄ voice
- 1930–35
- var. of phono- before a vowel:phonic.
phon., - Phoneticsphonetics.
Collins Concise English Dictionary © HarperCollins Publishers:: phon /fɒn/ n - a unit of loudness that measures the intensity of a sound by the number of decibels it is above a reference tone having a frequency of 1000 hertz and a root-mean-square sound pressure of 20 × 10–6 pascal
Etymology: 20th Century: via German from Greek phōnē sound, voice -phon-, root. - -phon- comes from Greek, where it has the meaning "sound;
voice.'' This meaning is found in such words as: cacophony, homophone, megaphone, microphone, phonetic, phonics, phonograph, phonology, polyphony, saxophone, stereophonic, symphony, telephone, xylophone.
WordReference Random House Unabridged Dictionary of American English © 2024pho•no (fō′nō),USA pronunciation n., pl. -nos. [Informal.]- Sound Reproduction, Informal Termsphonograph.
phono-, - a combining form meaning "sound,'' "voice,'' used in the formation of compound words:phonology.
Also,[esp. before a vowel,] phon-. Cf. -phone, -phony. - Greek, combining form representing phōné̄ voice
- 1945–50
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