ultrasonic

/ˌʌltrəˈsɒnɪk/ (bre, ipa) · [ˌʌltrəsˈɑnɪk] /ˌʌltrəˈsɑːnɪk/ (ame, ipa) · [ˌʌltrəsˈɑnɪk] /ˌəl-trə-ˈsä-nik How to pronounce ultrasonic (audio)/ (ame, mw)

ultrasonic — 形容詞

  • ultrasonicpositive
  • more ultrasoniccomparative
  • most ultrasonicsuperlative

1. connected with sound waves whose frequency lies beyond the range human ears can

1.形容詞C1
釋義

超音波的

頻率高到人耳聽不見的

connected with sound waves whose frequency lies beyond the range human ears can detect.

例句

Mizuki adjusted the ultrasonic cleaner to remove dirt from the tiny silver parts.

Mizuki 調整超音波清洗機，好把細小的銀色零件上的髒污洗掉。

collocation: ultrasonic cleaner

Doctors used an ultrasonic scan to check the baby's heartbeat during the visit.

醫師在這次看診中用超音波檢查胎兒的心跳。

collocation: ultrasonic scan

同義詞
  • high-frequency

    broader technical term; not every high-frequency sound is above the human hearing limit

  • inaudible

    describes the effect on listeners, not the sound wave's scientific range

反義詞
  • audible

    able to be heard by people, so within the human hearing range

文法句型

ultrasonic + noun

用法筆記

Usually appears before a noun, especially in technical terms such as ultrasonic cleaner, ultrasonic scan, and ultrasonic sensor. Distinguish it from supersonic, which describes speed faster than sound rather than frequency above human hearing.

常見錯誤

❌The jet became ultrasonic after take-off.
✅The jet became supersonic after take-off.
💡'ultrasonic' is about sound frequency above human hearing, not travel speed.