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nanny goat a female goat.
nano- one billionth.
nanometer a unit of length equal to one billionth of a meter; angstrom.
nanoparticle a microscopic particle with a size measured in nanometers.
nanoscale of a size measured in nanometers.
nanosecond a unit of time equal to one billionth of a second.
nanotechnology a field of study or endeavor concerned with the engineering of matter at the level of the atom or molecule.
nanotube a nanoscale tubular molecule, esp. of carbon.
nanowire a wire whose width is on the order of nanometers.
Nansen bottle an oceanographic device that takes a sample of water at a specified depth.
naos an ancient temple, or the inner part of such a temple, housing the statue of a deity.
nap1 to sleep briefly, esp. during daylight hours. [3 definitions]
nap2 a soft or furry surface on cloth or leather caused by raised, fuzzy fibers. [2 definitions]
napalm a highly flammable jelly containing aluminum soaps and gasoline, used in flame throwers and fire bombs. [2 definitions]
nape the back of the neck.
napery linens for use in the home, esp. table linens.
naphtha a colorless, flammable liquid distilled from coal or petroleum and used mainly as a solvent and cleaning agent.
naphthalene a white, crystalline hydrocarbon compound obtained from coal tar or petroleum and used in making moth repellents, dyes, solvents, and other products.
naphthol either of two isomeric derivatives of naphthalene, used in the manufacture of antiseptics, dyes, perfumes, and pharmaceuticals.
napiform of a root, shaped like a turnip.
napkin a square of cloth or paper used to protect the clothing and to wipe the mouth and hands while eating. [4 definitions]