Hierarchy:
Description:
{{context|of a speed|aeronautics}} far enough above the speed of sound so as to cause significant differences in behaviour due to chemical reactions or disassociation of the air.
Ngram:
Ngram Text:
hypersonic
Source:
Wiktionary
Issue:
0
Wiktionary tag:
Ngram Count:
1
Wikokit WikiText ID:
753664