Nit: From 1 Different Sources
n. the egg of a *louse. The eggs of head lice are firmly cemented to the hair, usually at the back of the head; those of body lice are fixed to the clothing. Nits, 0.8 × 0.3 mm, are visible as light white specks.
A tranquilliser introduced as a hypnotic. It is long-acting and may produce drowsiness next day. Addiction can occur. (See TRANQUILLISERS; HYPNOTICS; BENZODIAZEPINES.)... nitrazepam
A synthetic nitrofuran derivative which has a wide range of antibacterial activity and is e?ective against many gram-positive and gram-negative (see GRAM’S STAIN) micro-organisms. It is used mainly in the treatment of infections of the lower URINARY TRACT.... nitrofurantoin
A volatile, oily liquid prepared by the action of nitric and nitrous acids on amyl alcohol. It was used for many years to treat angina but has been superseded by other nitrate drugs such as glyceril trinitrate. The substance is misused by drug abusers to produce a ‘high’ and is referred to as ‘poppers’.... amyl nitrite
Chemical compounds that have a valuable role in the treatment of ANGINA PECTORIS. They are very e?ective in dilating the ARTERIES supplying the HEART; their prime bene?t, however, is to reduce the return of venous blood to the heart (via the superior and inferior venae cavae), thus reducing the demands on the left ventricle, which pumps deoxygenated blood to the lungs. Undesirable side-effects such as ?ushing, headache and postural HYPOTENSION may restrict the use of nitrates. Among the nitrate drugs used is GLYCERYL TRINITRATE which, taken under the tongue (sublingually), provides quick, symptomatic relief of angina, lasting for up to half an hour. Alternative administration can be via a spray product. Isorbide dinitrate taken sublingually is a more stable preparation, suitable for patients who need nitrates infrequently. The drug’s e?ect may last for 12 hours in modi?ed-release form. Patients taking long-acting nitrates or preparations absorbed through the skin (transdermal) may develop TOLERANCE.... nitrates
A colourless, odourless gas that makes up 78 per cent of the Earth’s atmosphere. Although nitrogen gas cannot be utilized by the body, compounds of nitrogen, such as amino acids, are essential to life.... nitrogen
(Indian) One who is deeply rooted Nitarah, Nitarra, Nitarrah, Nytara, Nytarra... nitara
A naturally occurring chemical that performs a wide range of biological roles. It is involved in the laying down of memories in the BRAIN; in killing viruses, bacteria and cancer cells; and in helping to control blood pressure. NO, comprising a nitrogen atom attached to an oxygen one, is one of the smallest of biologically active compounds as well as having such diverse functions. The chemical is a muscle relaxant and is important in maintaining the heart and circulation in good condition. NO is also the toxic agent released by macrophages (see MACROPHAGE) to kill invading germs and spreading cancer cells. It acts as an essential NEUROTRANSMITTER and protects nerve cells against stress. Researchers are studying how it might be used to treat diseases, for example by using it as an inhaled gas in certain respiratory conditions.... nitric oxide (no)
The nitrogen analogues of mustard gas are among the most important ALKYLATING AGENTS used in the treatment of various forms of malignant disease. They include chlormethine, busulphan, chlorambucil and melphalan.... nitrogen mustards
A compound or molecule that contains nitrogen; in my context, a substance that is or was a part of protein metabolism.... nitrogenous
Also known as laughing gas, this is (at ordinary pressures) a colourless, sweetish-smelling gas. It is used with oxygen to provide relief of pain (see ANALGESICS; PAIN) and mild ANAESTHESIA during childbirth, during painful dental procedures, and at the site of major accidents. It has a rapid action and the effects do not last for long.... nitrous oxide gas
(German) Form of Irene, meaning “a peaceful woman” Nitsah, Nytsa, Nytsah... nitsa
(Native American) My daughter Nitunah, Nytuna, Nytunah, Nitunna, Nitoona, Nytoona, Nitouna, Nytouna... nituna
(Indian) An eternal beauty Nithya, Nithyah, Nityah... nitya
Salts of nitrous acid (a nitrogen-containing acid). Sodium nitrite is used in meat preservation. In large amounts, nitrites can cause dizziness, nausea, and vomiting.... nitrites
The eggs of lice. Both head lice and pubic lice produce eggs, which they stick to the base of hairs. Nits measure only about 0.5 mm in diameter. They are light brown when newly laid, and white when hatched. (See also lice; pubic lice.)... nits
a strong corrosive mineral acid, HNO3, the concentrated form of which is capable of producing severe burns of the skin. Swallowing the acid leads to intense burning pain and ulceration of the mouth and throat. Treatment is by immediate administration of alkaline solutions, followed by milk or olive oil.... nitric acid
the relationship between the nitrogen taken into the body and that excreted, denoting the balance between the manufacture and breakdown of the body mass. A negative nitrogen balance, when excretion exceeds intake, is usual after injury or operations as the energy requirements of the body are met disproportionately from endogenous sources.... nitrogen balance
n. see glyceryl trinitrate.... nitroglycerin
(sodium nitroprusside) n. a cyanide-containing drug used mainly in the emergency treatment of high blood pressure. It is the most effective known means of reducing dangerously high pressure, but its effects and level in the blood must be closely monitored. Possible side-effects include nausea, vomiting, headache, palpitations, sweating, and chest pain.... nitroprusside
a salt of silver with *astringent, *caustic, and *disinfectant properties. It is used to destroy warts and umbilical granulomas.... silver nitrate
a sodium salt used, with sodium thiosulphate, to treat cyanide poisoning. Both drugs may cause headache and flushing.... sodium nitrite
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