planimeter
名词 n.
英文释义
名词 n.
- An integrating device used to measure the area of an irregular figure via tracing its outline.
词形变化
词源
Etymology tree
English plani-
Proto-Indo-European *meh₁-
Proto-Indo-European *-tḗr
Proto-Indo-European *-trom
Proto-Hellenic *-tron
Ancient Greek -τρον (-tron)
Ancient Greek μέτρον (métron)der.
English -meter
English planimeter
From plani- + -meter.
English plani-
Proto-Indo-European *meh₁-
Proto-Indo-European *-tḗr
Proto-Indo-European *-trom
Proto-Hellenic *-tron
Ancient Greek -τρον (-tron)
Ancient Greek μέτρον (métron)der.
English -meter
English planimeter
From plani- + -meter.
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数据来源: Wiktionary