gnomon
美['noʊmɒn] 英['nəʊmɒn]
n. 日晷仪；磬折形
英英释义
Noun- indicator provided by the stationary arm whose shadow indicates the time on the sundial
例句
用作名词(n.)- A stake used for this purpose was the earliest type of sundial and was called a gnomon.这种特定的标杆就是最早的一种日晷仪，人们称之为日晷仪标杆。
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