poundaln.

Brit.

/ˈpaʊndl/, U.S.

/ˈpaʊnd(ə)l/

Origin: Formed within English, by derivation. Etymon: pound n.¹

Etymology: < pound n.¹ + -al, perhaps after cental n.; coined by James Thomson (see quot. 1876).

Physics.

The unit of force in the foot-pound-second system, equal to the force which, when acting on a mass of one pound for a period of one second, accelerates it from rest to a speed of one foot per second (equivalent to approx. 0.1383 newton). Cf. foot-poundal n. at foot n. and int. Compounds 2.

ΘΚΠ

the world > matter > physics > mechanics > force > [noun] > units of force

pound-weight1824

pound-force1865

gram weight1871

dyne1873

kilodyne1873

poundal1875

Gramme1884

Newton1904

kilogram force1905

gram force1909

kip1915

N1951

lbf1961

ounce-force1961

ton-force1961

1875 J. C. Maxwell Theory Heat (ed. 4) iv. 83 For the British unit of force the name of Poundal has been proposed by Prof. James Thomson.

1876 J. Thomson Improved Investig. Flow of Water in Coll. Papers (1912) 66 For the unit of force derived from the foot, the pound, and the second, the name Poundal has been proposed by myself; and it seems likely to come into use.

1915 Science 4 June 827/2 We frankly talk about a unit of force called a poundal as a matter of convenience... We consider this term preferable to the ‘pound-foot-per-second-square’.

1972 Amer. Antiq. 37 40 The elastic moduli must be converted from lb/in² to poundals by multiplying each modulus times the acceleration of gravity.

1999 Air Safety Week (Nexis) 11 Oct. The National Aeronautics and Space Administration assumed that thrust would be calculated in newtons; the prime contractor used the more archaic poundals instead.

This entry has been updated (OED Third Edition, December 2006; most recently modified version published online March 2022).

单词	poundal
释义	poundaln. Brit. /ˈpaʊndl/, U.S. /ˈpaʊnd(ə)l/ Origin: Formed within English, by derivation. Etymon: pound n.¹ Etymology: < pound n.¹ + -al, perhaps after cental n.; coined by James Thomson (see quot. 1876). Physics. The unit of force in the foot-pound-second system, equal to the force which, when acting on a mass of one pound for a period of one second, accelerates it from rest to a speed of one foot per second (equivalent to approx. 0.1383 newton). Cf. foot-poundal n. at foot n. and int. Compounds 2. ΘΚΠ the world > matter > physics > mechanics > force > [noun] > units of force pound-weight1824 pound-force1865 gram weight1871 dyne1873 kilodyne1873 poundal1875 Gramme1884 Newton1904 kilogram force1905 gram force1909 kip1915 N1951 lbf1961 ounce-force1961 ton-force1961 1875 J. C. Maxwell Theory Heat (ed. 4) iv. 83 For the British unit of force the name of Poundal has been proposed by Prof. James Thomson. 1876 J. Thomson Improved Investig. Flow of Water in Coll. Papers (1912) 66 For the unit of force derived from the foot, the pound, and the second, the name Poundal has been proposed by myself; and it seems likely to come into use. 1915 Science 4 June 827/2 We frankly talk about a unit of force called a poundal as a matter of convenience... We consider this term preferable to the ‘pound-foot-per-second-square’. 1972 Amer. Antiq. 37 40 The elastic moduli must be converted from lb/in² to poundals by multiplying each modulus times the acceleration of gravity. 1999 Air Safety Week (Nexis) 11 Oct. The National Aeronautics and Space Administration assumed that thrust would be calculated in newtons; the prime contractor used the more archaic poundals instead. This entry has been updated (OED Third Edition, December 2006; most recently modified version published online March 2022). < n.1875
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