超音波（ちょうおんぱ、chouonpa）
- ultrasound

超音波 means "ultrasound" in English. It refers to sound waves with frequencies higher than the upper audible limit of human hearing. ⚫︎These frequencies are typically above 20,000 Hertz (Hz). ⚫︎超音波 is used in various fields, including medical imaging, industrial applications, and scientific research.

⚫︎妊娠中の女性は超音波］検査を受けました。 Translation: The pregnant woman had an ultrasound scan. ⚫︎超音波］診断は、体内の問題を発見するのに役立ちます。 Translation: Ultrasound diagnosis helps to find problems inside the body. ⚫︎超音波］洗浄機は、小さな部品を掃除するために使用されます。 Translation: An ultrasonic cleaner is used to clean small parts.

⚫︎You would use 超音波 in conversations related to medical checkups, technological applications, or scientific discussions. ⚫︎It's common to hear it when talking about pregnancy, medical diagnoses, or devices that use ultrasonic technology. ⚫︎You can also use it to discuss industrial applications where ultrasonic waves are used for cleaning or testing.

⚫︎超音波 is typically written with the following: ⚫︎Kanji: 超音波 ⚫︎Reading (furigana): ちょうおんぱ ⚫︎There is no other common way to write this word. ⚫︎Okurigana: There are no variations in the okurigana.

⚫︎While there aren't direct synonyms in Japanese, the English word "ultrasound" can be used as a loanword, but it’s not as common. ⚫︎Related terms: エコー（echo), which is sometimes used informally to refer to ultrasound scans.

⚫︎The direct antonym wouldn't be a single word, but rather the opposite concept: sound waves within the range of human hearing, or "audible sound." ⚫︎There isn't a specific single Japanese word for this, you would generally describe the opposite.

医者は患者の病気を診断するために、超音波］検査を行いました。 ・Translation: The doctor performed an ultrasound scan to diagnose the patient's illness. ・Explanation: This sentence describes the use of 超音波 in a medical context for diagnosis.

工業では、製品の欠陥を検出するために超音波］検査が使用されます。 ・Translation: In industry, ultrasound testing is used to detect defects in products. ・Explanation: This sentence shows the use of 超音波 in an industrial application.

⚫︎The word 超音波 is a compound word. ⚫︎超 (chou) means "ultra-" or "super-". ⚫︎音波 (onpa) means "sound wave". ⚫︎Therefore, 超音波 literally translates to "ultra-sound wave," accurately describing the nature of the phenomenon.