noun
end measure; end standard
Technical term in metrology for a gauge that embodies a specific length between two parallel faces, such as a block gauge or limit gauge.
端度器は、ブロックゲージのように二つの平行な測定面を持つ長さの標準器です。
An end measure is a length standard that has two parallel measuring faces, like a block gauge.
A limit gauge used for checking whether a dimension is within tolerance, often incorporating end-measure principles.
Compound of 端 (end) + 度 (degree/measure) + 器 (instrument). The exact historical derivation is uncertain; the term is a modern technical coinage.