longwardsadv.
/ˈlɒŋwədz/, U.S. /ˈlɔŋwərdz/, /ˈlɑŋwərdz/ Chiefly Astronomy.
= longward adv.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > [adverb] > towards longer wavelengths
longward1946
longwards1954
1954 Jrnl. Astron. Soc. Pacific 66 58 Some of the wide, displaced lines of the Α-star can still be seen longwards of λ 4500.
1971 D. W. Sciama Mod. Cosmol. ix. 132 Because of the red shift the emission is spread out longwards of 21 cm.
2006 P. Murdin in A. Heck Organizations & Strategies Astron. VII. 29 As the technology improved and the detector sensitivity moved longwards specialist telescopes became necessary.
This entry has been updated (OED Third Edition, June 2016; most recently modified version published online March 2022).
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