peirametern.

Brit.

/pʌɪˈramᵻtə/, U.S.

/paɪˈrɑmədər/

Forms: 1800s pirameter, 1800s– peirameter.

Origin: A borrowing from Greek, combined with an English element. Etymons: Greek πεῖρα , -meter comb. form².

Etymology: < ancient Greek πεῖρα trial, attempt, endeavour ( < the same Indo-European base as classical Latin perīculum peril n., experīrī to try: see expert adj.¹) + -meter comb. form².

rare.

A type of dynamometer, used to give an indication of the roughness of a road surface by measuring the force required to drag it along the surface.

ΘΚΠ

the world > matter > physics > mechanics > force > [noun] > resistance > friction > instrument measuring

tribometera1774

peirameter1842

1842 G. W. Francis Dict. Arts Peirameter, an instrument, invented by Mr. J. Macneil, which indicates the amount of resistance offered by the surfaces of roads, of different constructions, to the passing of wheel carriages, etc.

a1877 E. H. Knight Pract. Dict. Mech. II. 1650/1 Peirameter.., a clumsy form of dynamometer, being dragged along on the ground. The power required to move it is indicated by a finger on a dial.

a1877 E. H. Knight Pract. Dict. Mech. II. 1714/1 Pirameter, an instrument for measuring the power required to draw a carriage upon a road or track.

1927–9 H. Wheeler Waverley Children's Dict. V. 3180/1 Tests made with a peirameter, which is a form of spring-balance, show that the pull required to pull a ton at a walking pace is roughly as follows.

This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).

单词	peirameter
释义	peirametern. Brit. /pʌɪˈramᵻtə/, U.S. /paɪˈrɑmədər/ Forms: 1800s pirameter, 1800s– peirameter. Origin: A borrowing from Greek, combined with an English element. Etymons: Greek πεῖρα , -meter comb. form². Etymology: < ancient Greek πεῖρα trial, attempt, endeavour ( < the same Indo-European base as classical Latin perīculum peril n., experīrī to try: see expert adj.¹) + -meter comb. form². rare. A type of dynamometer, used to give an indication of the roughness of a road surface by measuring the force required to drag it along the surface. ΘΚΠ the world > matter > physics > mechanics > force > [noun] > resistance > friction > instrument measuring tribometera1774 peirameter1842 1842 G. W. Francis Dict. Arts Peirameter, an instrument, invented by Mr. J. Macneil, which indicates the amount of resistance offered by the surfaces of roads, of different constructions, to the passing of wheel carriages, etc. a1877 E. H. Knight Pract. Dict. Mech. II. 1650/1 Peirameter.., a clumsy form of dynamometer, being dragged along on the ground. The power required to move it is indicated by a finger on a dial. a1877 E. H. Knight Pract. Dict. Mech. II. 1714/1 Pirameter, an instrument for measuring the power required to draw a carriage upon a road or track. 1927–9 H. Wheeler Waverley Children's Dict. V. 3180/1 Tests made with a peirameter, which is a form of spring-balance, show that the pull required to pull a ton at a walking pace is roughly as follows. This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022). < n.1842
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