subsonic
adjective
noting or pertaining to a speed less than that of sound in air at the same height above sea level.
subsonically
-
a word derived from
subsonic.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Cruise missiles fly subsonically at low altitudes and are vulnerable to enemy air defenses.
From Time Magazine Archive
