from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A lustrous, grayish-black, corrosive, poisonous halogen element having radioactive isotopes, especially I 131, used as a medical tracer and in thyroid disease diagnosis and therapy. Iodine compounds are used as germicides, antiseptics, and dyes. Atomic number 53; atomic weight 126.9045; melting point 113.5°C; boiling point 184.35°C; specific gravity (solid, at 20°C) 4.93; valence 1, 3, 5, 7. See Table at element.
- n. An antiseptic preparation containing iodine in solution, used to treat wounds.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A chemical element (symbol: I) with an atomic number of 53; one of the halogens.
- n. An antiseptic incorporating the element.
- n. An iodide.
from the GNU version of the Collaborative International Dictionary of English
- n. A nonmetallic element, of the halogen group of atomic number 53, occurring always in combination, as in the iodides. When isolated it is in the form of dark gray metallic scales, resembling plumbago, soft but brittle, and emitting a chlorinelike odor. Symbol I. Atomic weight 126.90. If heated, iodine volatilizes in beautiful violet vapors.
from The Century Dictionary and Cyclopedia
- n. Chemical symbol, I; atomic weight, 126.9. In chem., a peculiar non-metallic elementary solid substance, forming one of the group of halogens.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a nonmetallic element belonging to the halogens; used especially in medicine and photography and in dyes; occurs naturally only in combination in small quantities (as in sea water or rocks)
- n. a tincture consisting of a solution of iodine in ethyl alcohol; applied topically to wounds as an antiseptic
Not surprisingly, the word violet is derived from the flower of the same name via the French violette or viola, and is cognate with the Greek ion, from which the word iodine is derived.
Here is a substance which we call iodine, and I am about to submit this solid body to the same kind of condition as regards heat that I did the water and the ether [putting a few grains of iodine into a hot glass globe, which immediately became filled with the violet vapor], and you see the same kind of change produced.
The herbal is rich in iodine compounds that stimulate thyroid gland functions.
Fucus Vesiculosus, or bladderwrack is a seaweed rich in iodine, which, if used in safe quantities, can prevent under-active thyroid in the same way iodized salt does.
Popular with tourists, jumiles are also nutritious, being rich in iodine, riboflavin and niacin.
(I know how to make a homemade water filter, to boil my water properly, to use iodine or chlorine to make stuff safe … so the good news is that when I get to my own home I can make myself a salad if I am willing to soak the lettuce in iodine for 20 minutes.)
One thing that occurred to me when moving here is that I could cross "goiter" off my list as something to worry about, since I would surely get enough iodine from the disinfectant.
But now I guess I'd better buy iodized salt, as it sounds like I would not get enough iodine from the disinfectant even if I used it all the time.
The 1-2 drops/quart of water does, however appear to be somewhat low, noting that 0. 25-0.5 mL of a standard tincture of iodine is recommended for treating water for drinking, while 0. 35-0.7 mL of a 10% povidone-iodine solution is normally used.
Now, let's see: do I soak the shrimp in iodine, or clorox?
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