ultrared

adj

1. (dated, not-comparable)infrared
2. (not-comparable)Of a very intense shade of red.

   “With her chest thrust forward, her head held high, and an ultrared smile painted on her lips, she advanced toward Jeanne with outstretched hands […]”

   “She’s abandoned her ultrared lipstick and nail polish and her turned-up collars and has taken up moderate pinks and going on diets, and grooming.”

   “[…] an ultrared pigment that lacks mercury and sulfur.”

noun

1. (countable, dated, uncountable)infrared