| / English Dictionary |
AMMONIUM
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
The ion NH4 derived from ammonia; behaves in many respects like an alkali metal ion
Synonyms:
ammonium; ammonium ion
Classified under:
Hypernyms ("ammonium" is a kind of...):
ammonia (a pungent gas compounded of nitrogen and hydrogen (NH3))
Derivation:
ammonify (treat with ammonia; cause to undergo ammonification)
Context examples:
The bromide salt form of methscopolamine, a quaternary ammonium derivative of scopolamine with anticholinergic properties.
(Methscopolamine Bromide, NCI Thesaurus)
The ammonium salt form of nonanoic acid is used as an herbicide.
(Nonanoic Acid, NCI Thesaurus)
Ipratropium is a synthetic quaternary ammonium compound and a competitive muscarinic acetylcholine (Ach) receptor antagonist.
(Ipratropium/Albuterol, NCI Thesaurus)
An immunotherapeutic agent consisting of a plasmid DNA encoding human Interleukin-2 (IL-2) complexed with a cationic lipid, 1,2-dimyristyloxypropyl-3-dimethyl-hydroxyethyl ammonium bromide/dioleyl-phosphatidyl-ethanolamine (DMRIE/DOPE), in a 5:1 ratio.
(IL-2 Plasmid DNA/Lipid Complex, NCI Thesaurus)
The ammonium ion is used to make carbamoyl phosphate, and ultimately urea through the urea cycle.
(Feeding Amino Groups into the Urea Cycle, NCI Thesaurus/BIOCARTA)
A synthetic quaternary ammonium anticholinergic agent with antimuscarinic activity.
(Glycopyrrolate, NCI Thesaurus)
Ammonium tetrathiomolybdate removes extra copper from the body.
(Ammonium tetrathiomolybdate, NCI Dictionary)
When the scientists measured urea in the ocean, they found it to be consistently present year-round, and concentrations tended to be higher than those of ammonium and nitrate in the summer.
(Giant kelp switches diet when key nutrient becomes scarce, National Science Foundation)
Researchers proposed solving this problem by encapsulating a traditional artificial leaf inside a transparent capsule made of a semi-permeable membrane of quaternary ammonium resin and filled with water.
(Artificial Leaves Convert CO2 to Fuel 10 Times More Efficient Than Nature, The Titi Tudorancea Bulletin)
An organic salt of ammonium (lactic acid neutralized with ammonium hydroxide), topical moisturizing Ammonium Lactate can be applied as a humectant in ichthyosis vulgaris and xerosis.
(Ammonium Lactate, NCI Thesaurus)
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