極ごく超ちょう音おん速そく

also: きょくちょうおんそく

ご

く

ちょ

う

お

ん

そ

く

Meanings

1

hypersonic speed

Technical term for speeds above Mach 5, used in aerospace and engineering contexts.

よう

だ

。

Developing a hypersonic aircraft requires advanced technology.

極ごく超ちょう音おん速そくで飛とぶミサイルの実じっ験けんが行おこなわれた。

A test of a missile flying at hypersonic speed was conducted.

超ちょう音おん速そく
Supersonic speed (above Mach 1). 極超音速 is a higher speed range, typically above Mach 5.

極超音速
- ごくちょうおんそく
  Standard kanji spelling. The reading ごくちょうおんそく is the most common; きょくちょうおんそく is a less common variant.
- きょくちょうおんそく
  Alternate reading, less common than ごくちょうおんそく. Learners should prioritize the ごく reading.
きょくちょうおんそく

Compound of 極 (extreme) + 超音速 (supersonic). The reading ごく is standard for 極 in this context; きょく is a less common variant.