telltale(redirected from Dogvane)
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1. any of various indicators or recording devices used to monitor a process, machine, etc.
a. another word for dogvane
b. one of a pair of light vanes mounted on the main shrouds of a sailing boat to indicate the apparent direction of the wind
A marker on the outside of a tank that indicates on an exterior scale the amount of fluid inside the tank.
Any device designed to indicate movement of formwork.