refractern.

Brit.

/rᵻˈfraktə/, U.S.

/rəˈfræktər/,

/riˈfræktər/

Origin: Formed within English, by derivation. Etymons: refract v., -er suffix¹.

Etymology: < refract v. + -er suffix¹. Compare earlier refractor n.

Now rare.

A device which makes use of or produces refraction of light; (in early use) †a refracting telescope (= refractor n. 2b) (obsolete).

ΘΚΠ

the world > physical sensation > sight and vision > optical instruments > instrument for distant vision > [noun] > telescope > refracting telescopes

refracting telescope1728

refracter1738

refractor1747

1738 R. Smith Compl. Syst. Opticks II. xi. 365 The distinctness and magnifying power thereof exceeds that of a refracting telescope of 35 feet; yet the spectator will always fancy that the refracter hath the advantage of this instrument.

1762 Philos. Trans. 1761 (Royal Soc.) 52 397 A 4 feet refracter, of Mr. Dollond's new construction.

1809 W. Frend Evening Amusements 173 The rays of the Moon collected by any reflecter or refracter as yet used.

1985 R. O. Carhart in J. M. Margolis Engin. Thermoplastics iii. 38 By masking the prismatic refracter and selectively painting the interior an opaque bezel can be made to hide internals.

This entry has been updated (OED Third Edition, September 2009; most recently modified version published online March 2022).

单词	refracter
释义	refractern. Brit. /rᵻˈfraktə/, U.S. /rəˈfræktər/, /riˈfræktər/ Origin: Formed within English, by derivation. Etymons: refract v., -er suffix¹. Etymology: < refract v. + -er suffix¹. Compare earlier refractor n. Now rare. A device which makes use of or produces refraction of light; (in early use) †a refracting telescope (= refractor n. 2b) (obsolete). ΘΚΠ the world > physical sensation > sight and vision > optical instruments > instrument for distant vision > [noun] > telescope > refracting telescopes refracting telescope1728 refracter1738 refractor1747 1738 R. Smith Compl. Syst. Opticks II. xi. 365 The distinctness and magnifying power thereof exceeds that of a refracting telescope of 35 feet; yet the spectator will always fancy that the refracter hath the advantage of this instrument. 1762 Philos. Trans. 1761 (Royal Soc.) 52 397 A 4 feet refracter, of Mr. Dollond's new construction. 1809 W. Frend Evening Amusements 173 The rays of the Moon collected by any reflecter or refracter as yet used. 1985 R. O. Carhart in J. M. Margolis Engin. Thermoplastics iii. 38 By masking the prismatic refracter and selectively painting the interior an opaque bezel can be made to hide internals. This entry has been updated (OED Third Edition, September 2009; most recently modified version published online March 2022). < n.1738
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