tachymeter
Concise Oxford English Dictionary © 2008 Oxford University Press:
tachymeter /taˈkɪmɪtə/
▶noun
- 1 a theodolite for the rapid measurement of distances in surveying.
- 2 a facility on a watch for measuring speed.
– derivatives
tachymetric adjective.
tachymetric adjective.
'tachymeter' also found in these Oxford entries:

