English Dictionary

tribrach

IPA（発音記号）

/ˈtɹaɪbɹæk/

名詞

(archaeology) A tribrachial prehistoric flint implement. / (surveying) A circular platform on three legs, each having levelling screws, used to connect a theodolite to a tripod.

日本語の意味

（考古学）三脚状の旧石器時代に用いられた打製石器 / （測量学）三脚に装着され、各脚に水平調整用のネジが付いた円形の台座（トータルステーションなどを取り付けるための器具）

The field team discovered a small tribrach lodged in the sediment layer, offering new clues about tool-making techniques.

調査チームは堆積層に埋もれていた小さな先史時代の三脚状の燧石製石器を発見し、石器製作技術に関する新たな手がかりを得た。

意味（1）

(archaeology) A tribrachial prehistoric flint implement.

In a recent examination of the registers of the Ryde Philosophical Society, Mr. Martin has found, as I have been informed through Mr. Westropp’s kindness, the entry, that the flint tribrach was presented to the collection by the late Dr. Martin in 1853, with other objects from Ventnor, and as having been obtained on the shore at that place.

意味（2）

(surveying) A circular platform on three legs, each having levelling screws, used to connect a theodolite to a tripod.

An optical plummet, built into either the tribrach or alidade of total station instruments, permits accurate centering over a point.

tribrachs （ plural ）