rubiform

English

Etymology

Latin rubifōrmis, from ruber (“red”) + -fōrmis.

Adjective

rubiform (comparative more rubiform, superlative most rubiform)

1. (archaic) reddish
   • 1704, I[saac] N[ewton], “(please specify |book=1 to 3)”, in Opticks: Or, A Treatise of the Reflexions, Refractions, Inflexions and Colours of Light. […], London: […] Sam[uel] Smith, and Benj[amin] Walford, printers to the Royal Society, […], →OCLC:

     the rubiform rays of the sun

References

• “rubiform”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.