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.
NIL stands for. 1  8. NIL. Nothing. Morse aids, Morse code, Radio. 2  7. NIL. Near Isogenic Line. Medical, Biology, Science. 3  5. similar. NIL. Neurointermediate Lobe. Medical. 4  4. NIL. Neurointermediate lobes. Medical. 5  4. NIL. Nilvadipine. Medical. 6  1. similar. NIL. neurointermediate pituitary lobe. Medical. 7  1. NIL. neurointermediate lobe of the pituitary.