caliper
/ˈkælɪpə(r)//ˈkælɪpər/The word "caliper" has its roots in the Latin word "calix," meaning "cup." This makes sense, as early calipers resembled a pair of cups or shells hinged together. The word likely entered English through French, where it became "calibre" in the 16th century. This was initially used to describe the diameter of a cannonball, highlighting the tool's ability to measure diameters. Over time, "caliper" became synonymous with the measuring tool itself, with "caliber" evolving to mean "quality" or "skill."
an instrument with two long thin parts joined at one end, used for measuring the diameter of tubes and round objects (= the distance across them)
một dụng cụ có hai phần mỏng dài được nối ở một đầu, dùng để đo đường kính của ống và vật tròn (= khoảng cách giữa chúng)
một cặp thước cặp
a metal support for weak or injured legs
giá đỡ bằng kim loại cho đôi chân yếu hoặc bị thương
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