名詞 planimeter:

1. a measuring instrument for measuring the area of an irregular plane figure
   同義詞：integrator

pla.nim.e.ter

n.（名詞）
An instrument that measures the area of a plane figure as a mechanically coupled pointer traverses the perimeter of the figure.
測面儀：一種儀器，當(dāng)機(jī)械連結(jié)的探針掃過平面圖形的周線時(shí)能測出圖形的面積

【引伸】
pla.nimet.ric
pla.nimet.rically
adv.（副詞）
planim.etry
n.（名詞）