Langimage
English

subsonic

|sub-son-ic|

B2

/sʌbˈsɒnɪk/

below sound speed

Etymology
Etymology Information

'subsonic' originates from Latin, specifically the word 'sub' meaning 'under' and 'sonic' from 'sonus' meaning 'sound'.

Historical Evolution

'subsonic' was formed in the 20th century to describe speeds below the speed of sound.

Meaning Changes

Initially, it meant 'below sound', and this meaning has remained consistent in modern usage.

Meanings by Part of Speech

Adjective 1

relating to speeds less than that of sound in air.

The aircraft was designed for subsonic flight.

Synonyms

Antonyms

Last updated: 2025/02/27 07:26