Crossword-Solution: LEUCO 5 letters, 11 clues 🏆 scrabble score: 7

But I, the Baital, the devil, ask you, what is a born philosopher, save a man of cold desires? And what is a bred philosopher but a man who has survived his desires? A young philosopher?--a cold-blooded youth! An elderly philosopher?--a leuco-phlegmatic old man! Much nonsense, of a verity, ye hear in praise of nothing from your Rajaship’s Nine Gems of Science, and from sundry other such wise fools.

When indigo is mixed with substances like lime and copperas, lime and zinc, zinc and bisulphite of soda, which cause the evolution of nascent hydrogen, it takes up this body and passes into another substance which is called indigo white that has the formula C{16}H{12}N{2}O{2}, leuco, or white indigo; this substance is soluble in water, and so when it is formed the indigo passes into solution and can then be used for dyeing.

Why should any intellectual development imply deficiency? Why should an acquirement argue a defect? I answer, I don’t know--any more than I know why sanguineous people are hot-tempered, and leuco-phlegmatic ones are more brooding in their wrath.

Etym: [Leuco- + Ethiopic.] Defn: White and black; -- said of a white animal of a black species, or the albino of the negro race.

Etym: [Leuco- + pyrites.] (Min.) Defn: A mineral of a color between white and steel-gray, with a metallic luster, and consisting chiefly of arsenic and iron.