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Narcotic

nar-KOT-ik

/nɑːrˈkɒtɪk/

Pain-relieving drug inducing drowsiness.

Narrow therapeutic index

NAIR-oh ther-uh-PYOO-tik IN-deks

/ˈnæroʊ ˌθɛrəˈpjuːtɪk ˈɪndɛks/

Small safety margin between dose and toxicity.

Nebulization

neb-yuh-lih-ZAY-shun

/ˌnɛbjʊlaɪˈzeɪʃən/

Turning medication into fine mist.

Necrosis

neh-KROH-sis

/nəˈkroʊsɪs/

Death of cells in organ or tissue.

Negative feedback

NEG-uh-tiv FEED-bak

/ˈnɛɡətɪv ˈfiːdbæk/

Regulatory mechanism reducing original stimulus.

Neoplasm

NEE-oh-plaz-um

/ˈniːoʊplæzəm/

Abnormal growth of tissue.

Nephrotoxicity

nef-roh-tok-SIS-ih-tee

/ˌnɛfroʊtɒkˈsɪsɪti/

Toxicity in the kidneys.

Neuroleptic

noor-oh-LEP-tik

/ˌnʊəroʊˈlɛptɪk/

Drug used to treat psychotic disorders.

Neuropathy

noo-ROP-uh-thee

/nʊˈrɒpəθi/

Dysfunction of peripheral nerves.

Neurotransmitter

noor-oh-TRANS-mit-ur

/ˌnjʊəroʊtrænzˈmɪtər/

Chemical substance released at nerve ends.

Nicotinic

nik-uh-TIN-ik

/ˌnɪkəˈtɪnɪk/

Acetylcholine receptors on muscle/nerves.

Nociceptor

NOH-sih-sep-tur

/ˈnoʊsisɛptər/

Sensory receptor for pain.

Non-proprietary

non-pruh-PRY-uh-tair-ee

/ˌnɒnprəˈpraɪətəri/

Generic name of a drug.

Norepinephrine

nor-ep-ih-NEF-rin

/ˌnɔːrˌɛpɪˈnɛfrɪn/

Hormone involved in fight or flight.

Nosocomial

nos-oh-KOH-mee-ul

/ˌnɒsəˈkoʊmiəl/

Originating in a hospital.

Nystagmus

nih-STAG-mus

/nɪˈstæɡməs/

Rapid involuntary eye movements.