vernier caliper

vernier caliper

n. A measuring instrument consisting of an L-shaped frame with a linear scale along its longer arm and an L-shaped sliding attachment with a vernier, used to read directly the dimension of an object represented by the separation between the inner or outer edges of the two shorter arms.

ver′nier cal`iper

n. a caliper formed of two pieces sliding across one another, one having a graduated scale and the other a vernier. Also called ver′nier microm`eter. [1875–80]

Thesaurus

Noun

1.

vernier caliper - a caliper with a vernier scale for very fine measurementsvernier micrometercaliper, calliper - an instrument for measuring the distance between two points (often used in the plural)