| / English Dictionary |
IODIDE
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
A salt or ester of hydriodic acid
Classified under:
Hypernyms ("iodide" is a kind of...):
halide (a salt of any halogen acid)
Hyponyms (each of the following is a kind of "iodide"):
potassium iodide (a crystalline salt in organic synthesis and in making photographic emulsions and in iodized table salt)
hydrogen iodide (a colorless gas that yields hydroiodic acid in aqueous solution)
silver iodide (an iodide that is used in photography, in seeding clouds to make rain, and in medicine)
sodium iodide (a crystalline salt used like potassium iodide)
Context examples:
The iodide salt form of echothiophate, a long-acting cholinesterase inhibitor with parasympathomimetic activity.
(Echothiophate Iodide, NCI Thesaurus)
NIS, an intrinsic membrane glycoprotein, is an ion pump that actively transports iodide into cells which concentrate iodine; in addition to thyroid epithelial cells, it is found in non-thyroidal tissues including the salivary glands, the gastric mucosa, and lactating mammary glands.
(Ad5-CMV-NIS, NCI Thesaurus)
An international team of researchers led by the University of Cambridge found that the addition of potassium iodide ‘healed’ the defects and immobilised ion movement, which to date have limited the efficiency of cheap perovskite solar cells.
(Potassium gives perovskite-based solar cells an efficiency boost, University of Cambridge)
The potassium iodide formed a ‘decorative’ layer on top of the perovskite which had the effect of ‘healing’ the traps so that the electrons could move more freely, as well as immobilising the ion movement, which makes the material more stable at the desired bandgap.
(Potassium gives perovskite-based solar cells an efficiency boost, University of Cambridge)
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