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 (plə-nĭm′ĭ-tər, plā-)
An instrument that measures the area of a plane figure as a mechanically coupled pointer traverses the perimeter of the figure.

pla′ni·met′ric (plā′nə-mĕt′rĭk), pla′ni·met′ri·cal (-rĭ-kəl) adj.
pla·nim′e·try n.


(Mathematics) a mechanical integrating instrument for measuring the area of an irregular plane figure, such as the area under a curve, by moving a point attached to an arm around the perimeter of the figure


(pləˈnɪm ɪ tər)

an instrument for measuring the area of plane figures.
pla•ni•met•ric (ˌpleɪ nəˈmɛt rɪc) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.planimeter - a measuring instrument for measuring the area of an irregular plane figureplanimeter - a measuring instrument for measuring the area of an irregular plane figure
measuring device, measuring instrument, measuring system - instrument that shows the extent or amount or quantity or degree of something
References in periodicals archive ?
Using a planimeter, Murray measured the area within each of the five rainfall depth categories on his map, and from this he estimated the total precipitation falling annually on the terrestrial regions of Earth.
Determination of the number of leaves and leaf area: At the end of the drought experiment, the number of leaves was counted and the leaf areas were determined as cm2 with a planimeter in all bean genotypes.
LMA was traced on transparencies and measured later with a planimeter and RFT measurements were taken 3/4 the length ventrally over the longissimus muscle by using a digital paquimeter [12].
Immediately after collection, plants were taken to the laboratory where the siliques were separated from stems, to determine the area of siliques and stems, through an optical planimeter model LI 3000 (LI-COR, Lincoln, USA).
The same cotton plants that were removed for LAI measurements by the planimeter provided the green and dry biomass.
At the end of experiment, plant growth was evaluated on the basis of: I) leaf area measurement with a planimeter (model LI-3000A, Li-Cor, USA), II) the number of tillers, and III) the dry mass of the shoot and root system.
The areas between successive contours were measured by digital planimeter, and contour heights were obtained from topographic maps used for this work.
Termites response towards galleries formation for each leaf extract at each concentration after 5, 10 and 15 h were determined by plotting the tunnels on the cellophane paper and measured the length in mm with the help of planimeter.
The areal extent of the individual grassland polygons and the study area was determined by planimeter measurement.
Foliar surface (FS) was measured by a digital planimeter, with 0.
The length (mm) and the width (mm) of each band was measured using planimeter [(10 mm x 10 mm = ulcer area) under dissecting microscope (1.