Measuring instrument for indicating speed of rotation.
synonym: tach.
Roget 274:
velocity,
speed,
celerity;
swiftness
etc.
adj.;
rapidity,
eagle speed;
expedition
etc.
(activity)
682;
pernicity†;
acceleration;
haste
etc.
684.
spurt,
rush,
dash,
race,
steeple chase;
smart rate,
lively rate,
swift rate
etc.
adj.;
rattling rate,
spanking rate,
strapping rate,
smart pace,
lively pace,
swift pace,
rattling pace,
spanking pace,
strapping pace;
round pace;
flying,
flight.
lightning,
greased lightning,
light,
electricity,
wind;
cannon ball,
rocket,
arrow,
dart,
hydrargyrum [Lat.],
quicksilver;
telegraph,
express train;
torrent.
eagle,
antelope,
courser,
race horse,
gazelle,
greyhound,
hare,
doe,
squirrel,
camel bird,
chickaree†,
chipmunk,
hackee [U.S.],
ostrich,
scorcher [Slang].
Mercury,
Ariel†,
Camilla†,
Harlequin.
[Measurement of velocity]
log,
log line;
speedometer,
odometer,
tachometer,
strobe,
radar speed detector,
radar trap,
air speed gauge,
wind sock,
wind speed meter;
pedometer.
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Dutch: snelheidsmeter, tachometer, toerenteller