Napier's rodsn.

Brit.

/ˌneɪpɪəz ˈrɒdz/, U.S.

/ˌneɪpi(ə)rz ˈrɑdz/

Forms: 1600s Nepiers rods, 1700s Neper's rods, 1800s– Napier's rods.

Origin: From a proper name, combined with an English element. Etymons: proper name Napier , rod n.¹

Etymology: < the genitive of the name of John Napier (see Napier's bones n.) + the plural of rod n.¹

Mathematics.

= Napier's bones n.

ΘΚΠ

the world > relative properties > number > mathematical instruments > [noun] > arithmetical instrument

mesograph1579

mesolabe1579

quipu1581

rods1618

Napier's bones1647

Napier's rods1678

reckoner1757

counter1803

adding machine1822

operameter1830

virgulaa1831

adder1856

computer1869

arithmometer1876

perforation gauge1882

Cuisenaire rod1954

number line1964

number cruncher1966

cruncher1971

1678 E. Phillips New World of Words (new ed.) Nepiers Bones or Rods.

1754 New & Compl. Dict. Arts & Sci. III. 2202/1 Neper's Rods or bones, an instrument invented by J. Neper, baron of Merchiston, in Scotland, whereby the multiplication and division of large numbers are much facilitated.

1838 Philos. Trans. (Royal Soc.) 128 4 Presents... Instruments, &c. Napier's Rods (a set of). Supposed to have been made and used by the Laird of Merchiston himself.

1870 Manufacturer & Builder Aug. 225/1 Following on the discovery of logarithms, there was the invention of Baron Napier, called Rhabdology, (since known as ‘Napier's rods’).

1960 F. Land Lang. of Math. i. 5 His last work included a description of what are known as Napier's Rods or Napier's Bones.

1998 Oxf. Univ. Gaz. 7 May 1159/1 The more notable acquisitions for the year were..[a] set of Napier's rods, presented by H. Wynter [etc.].

This entry has been updated (OED Third Edition, June 2003; most recently modified version published online March 2022).

单词	napiers rods
释义	Napier's rodsn. Brit. /ˌneɪpɪəz ˈrɒdz/, U.S. /ˌneɪpi(ə)rz ˈrɑdz/ Forms: 1600s Nepiers rods, 1700s Neper's rods, 1800s– Napier's rods. Origin: From a proper name, combined with an English element. Etymons: proper name Napier , rod n.¹ Etymology: < the genitive of the name of John Napier (see Napier's bones n.) + the plural of rod n.¹ Mathematics. = Napier's bones n. ΘΚΠ the world > relative properties > number > mathematical instruments > [noun] > arithmetical instrument mesograph1579 mesolabe1579 quipu1581 rods1618 Napier's bones1647 Napier's rods1678 reckoner1757 counter1803 adding machine1822 operameter1830 virgulaa1831 adder1856 computer1869 arithmometer1876 perforation gauge1882 Cuisenaire rod1954 number line1964 number cruncher1966 cruncher1971 1678 E. Phillips New World of Words (new ed.) Nepiers Bones or Rods. 1754 New & Compl. Dict. Arts & Sci. III. 2202/1 Neper's Rods or bones, an instrument invented by J. Neper, baron of Merchiston, in Scotland, whereby the multiplication and division of large numbers are much facilitated. 1838 Philos. Trans. (Royal Soc.) 128 4 Presents... Instruments, &c. Napier's Rods (a set of). Supposed to have been made and used by the Laird of Merchiston himself. 1870 Manufacturer & Builder Aug. 225/1 Following on the discovery of logarithms, there was the invention of Baron Napier, called Rhabdology, (since known as ‘Napier's rods’). 1960 F. Land Lang. of Math. i. 5 His last work included a description of what are known as Napier's Rods or Napier's Bones. 1998 Oxf. Univ. Gaz. 7 May 1159/1 The more notable acquisitions for the year were..[a] set of Napier's rods, presented by H. Wynter [etc.]. This entry has been updated (OED Third Edition, June 2003; most recently modified version published online March 2022). < n.1678
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