Nap, v. t. To raise, or put, a nap on.
Nape (?), n. [Perh. akin to knap a knop.] The back part of the neck.
Spenser.
Nape"-crest` (?), n. (Zoöl.) An African bird of the genus Schizorhis,
related to the plantain eaters.
Na"per*y (?), n.; pl. Naperies (#). [OF. naperie, fr. nape a
tablecloth, F. nappe, LL. napa, fr. L. mappa. See Map, and cf. Apron,
Napkin.] Table linen; also, linen clothing, or linen in general. [Obs.]
Gayton.
Na"pha wa`ter (?). [Sp. nafa, from Ar. napha odor.] A perfume distilled
from orange flowers.
Na"phew (?), n. (Bot.) See Navew.
Naph"tha (?), n. [L. naphtha, Gr. &?;&?;&?;&?;&?;, fr.Ar. nafth,
nifth.] 1. (Chem.) The complex mixture of volatile, liquid, inflammable
hydrocarbons, occurring naturally, and usually called crude petroleum,
mineral oil, or rock oil. Specifically: That portion of the distillate
obtained in the refinement of petroleum which is intermediate between
the lighter gasoline and the heavier benzine, and has a specific
gravity of about 0.7, -- used as a solvent for varnishes, as a
carburetant, illuminant, etc.
2. (Chem.) One of several volatile inflammable liquids obtained by the
distillation of certain carbonaceous materials and resembling the
naphtha from petroleum; as, Boghead naphtha, from Boghead coal
(obtained at Boghead, Scotland); crude naphtha, or light oil, from coal
tar; wood naphtha, from wood, etc.
This term was applied by the earlier chemical writers to a number of
volatile, strong smelling, inflammable liquids, chiefly belonging to
the ethers, as the sulphate, nitrate, or acetate of ethyl. Watts.
Naphtha vitrioli [NL., naphtha of vitriol] (Old Chem.), common ethyl
ether; -- formerly called sulphuric ether. See Ether.
Naph"tha*late (?), n. (Chem.) A salt of naphthalic acid; a phthalate.
[Obs.]
Naph"tha*lene (?), n. (Chem.) A white crystalline aromatic hydrocarbon,
C10H8, analogous to benzene, and obtained by the distillation of
certain bituminous materials, such as the heavy oil of coal tar. It is
the type and basis of a large number of derivatives among organic
compounds. Formerly called also naphthaline.
Naphthalene red (Chem.), a dyestuff obtained from certain diazo
derivatives of naphthylamine, and called also magdala red. --
Naphthalene yellow (Chem.), a yellow dyestuff obtained from certain
nitro derivatives of naphthol.
Naph`tha*len"ic (?), a. (Chem.) Pertaining to , or derived from,
naphthalene; -- used specifically to designate a yellow crystalline
substance, called naphthalenic acid and also hydroxy quinone, and
obtained from certain derivatives of naphthol.
Naph*tha"lic (?), a. (Chem.) (a) Pertaining to, derived from, or
related to, naphthalene; -- used specifically to denote any one of a
series of acids derived from naphthalene, and called naphthalene acids.
(b) Formerly, designating an acid probably identical with phthalic
acid.
Naph*thal"i*dine (?), n. [Naphthalene + toluidine.] (Chem.) Same as
Naphthylamine.
{ Naph"tha*lin (?), Naph"tha*line (?), } n. [F. naphthaline.] (Chem.)
See Naphthalene.
Naph"tha*lize (?), v. t. (Chem.) To mingle, saturate, or impregnate,
with naphtha.
Naph*thaz"a*rin (?), n. [Naphthalene + alizarin.] (Chem.) A dyestuff,
resembling alizarin, obtained from naphthoquinone as a red crystalline
substance with a bright green, metallic luster; -- called also
naphthalizarin.
Naph"thene (?), n. (Chem.) A peculiar hydrocarbon occuring as an
ingredient of Caucasian petroleum.
Naph"thide (?), n. (Chem.) A compound of naphthalene or its radical
with a metallic element; as, mercuric naphthide.
Naph*tho"ic (?), a. (Chem.) Pertaining to, derived from, or related to,
naphthalene; -- used specifically to designate any one of a series of
carboxyl derivatives, called naphthoic acids.
Naph"thol (?), n. [Naphthalene + -ol.] (Chem.) Any one of a series of
hydroxyl derivatives of naphthalene, analogous to phenol. In general
they are crystalline substances with a phenol (carbolic) odor.
Naphthol blue, Naphthol orange, Naphthol yellow (Chem.), brilliant
dyestuffs produced from certain complex nitrogenous derivatives of
naphthol or naphthoquinone.
Naph`tho*qui"none (?), n. [Naphthalene + quinone.] (Chem.) A yellow
crystalline substance, C10H6O2, analogous to quinone, obtained by
oxidizing naphthalene with chromic acid.
Naph"thyl (?), n. [Naphthalene + -yl.] (Chem.) A hydrocarbon radical
regarded as the essential residue of naphthalene.
Naph`thyl*am"ine (?), n. (Chem.) One of two basic amido derivatives of
naphthalene, C10H7.NH2, forming crystalline solids.
{ Na*pie"ri*an, Na*pe"ri*an , } (?), a. Of, pertaining to, or
discovered by, Napier, or Naper.
Naperian logarithms. See under Logarithms.
{ Na"pi*er's bones` (?), Na"pi*er's rods` (?) }. A set of rods, made of
bone or other material, each divided into nine spaces, and containing
the numbers of a column of the multiplication table; -- a contrivance
of Baron Napier, the inventor of logarithms, for facilitating the
operations of multiplication and division.
Na"pi*form (?), a. [L. napus turnip + -form: cf. F. napiforme. Cf.
Navew.] (Bot.) Turnip-shaped; large and round in the upper part, and
very slender below.
Nap"kin (?), n. [Dim. of OF. nape a tablecloth, cloth, F. nappe, L.
mappa. See Napery.] 1. A little towel, or small cloth, esp. one for
wiping the fingers and mouth at table.