Crossword-Solution: IOD 3 letters, 3 clues 🏆 scrabble score: 4

Etym: [Iod- + chlorhydrin.] (Chem.) Defn: One of a series of compounds containing iodine, and analogous to the chlorhydrins.

But I may not speak of what was at the other end of the bridge, nor of the unnamable things that I saw--and did! I learned of the fungoid, inhuman beings that dwell on far cold Yuggoth, of the cyclopean shapes that attend unsleeping Cthulhu in his submarine city, of the strange pleasures that the followers of leprous, subterranean Yog-Sothoth may possess, and I learned, too, of the unbelievable manner in which Iod, the Source, is worshipped beyond the outer galaxies.

Some of the more common ones, which have syphilitic taint are, aurum, kali iod., mercury, nitric acid, argentum nitricum, and calc.

But perhaps we may have a clearer Comprehenſion of this vaſt Length, by comparing it with ſome very ſwift Motion after the Example of Heſiod the Poet, who imagin’d that an Anvil let fall from the Top of Heaven, reach’d the Earth the tenth Day of its Journey, and in ten more arriv’d at the Bottom of Hell, the end of it: ſo making the Earth the mid-way between Heaven and Hell.