Medical conditions associated with nasal antihistamines and decongestants: 1  Allergic Rhinitis. 2  Cold Symptoms. 3  Nasal Congestion. 4  Rhinorrhea.
Princeton's WordNet(0.00 / 0 votes)Rate this definition: nickel, Ni, atomic number 28(noun) a hard malleable ductile silvery metallic element that is resistant to corrosion; used in alloys; occurs in pentlandite and smaltite and garnierite and millerite. ni. .ni is the Internet country code top-level domain for Nicaragua.
1) In information technology as elsewhere, a nit (pronounced NIHT) is a small, usually unimportant imperfection in something. People who have unusually high or unreasonable standards for the quality of a thing are sometimes referred to as nitpickers.2) In lighting, the nit is a unit of visible-light intensity, commonly used to specify the brightness of a cathode ray tube or liquid crystal display computer display.eople who have unusually high or unreasonable standards for the quality of a thing are sometimes referred to as nitpickers. 2) In lighting, the nit is a unit of visible-light intensity, commonly used to specify the brightness of a cathode ray tube or liquid crystal display computer display.