a. [SUB- 1 a.]

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  † 1.  Exposed to the sun. Obs. rare–1.

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1657.  Tomlinson, Renou’s Disp., 44. From a subsolar place … some are better or worse.

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  2.  Meteorol. Directly underneath the sun; having the sun in the zenith.

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1860.  Fitzroy, in Merc. Marine Mag., VII. 356. It is drawn towards, and after the ‘sub-solar’ rising part of the atmosphere.

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1863.  Fitzroy, Weather Bk., v. 71. The rising sub-solar or intertropical part of the atmosphere.

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  3.  Beneath the surface of the sun. rare.

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1885.  Agnes M. Clerke, Pop. Hist. Astron., II. ii. 211. In the penumbræ of spots, the glowing streams rushing up from the tremendous sub-solar furnace are bent sideways by the powerful indraught.

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