Definition of Blue

Pronunciation: blū
a.1.Having the color of the clear sky, or a hue resembling it, whether lighter or darker; as, the deep, blue sea; as blue as a sapphire; blue violets.
2.Pale, without redness or glare, - said of a flame; hence, of the color of burning brimstone, betokening the presence of ghosts or devils; as, the candle burns blue; the air was blue with oaths.
3.Low in spirits; melancholy; as, to feel blue.
4.Suited to produce low spirits; gloomy in prospect; as, thongs looked blue.
5.Severe or over strict in morals; gloom; as, blue and sour religionists; suiting one who is over strict in morals; inculcating an impracticable, severe, or gloomy mortality; as, blue laws.
6.Literary; - applied to women; - an abbreviation of bluestocking.
The ladies were very blue and well informed.
- Thackeray.
Blue asbestus
See Crocidolite.
Blue black
of, or having, a very dark blue color, almost black.
Blue blood
See under Blood.
Blue buck
(Zool.) a small South African antelope (Cephalophus pygmæus); also applied to a larger species (Ægoceras leucophæus); the blaubok.
Blue cod
(Zool.) the buffalo cod.
Blue crab
(Zool.) the common edible crab of the Atlantic coast of the United States (Callinectes hastatus).
Blue curls
(Bot.) a common plant (Trichostema dichotomum), resembling pennyroyal, and hence called also bastard pennyroyal.
Blue devils
apparitions supposed to be seen by persons suffering with delirium tremens; hence, very low spirits.
Blue gage
See under Gage, a plum.
- Thackeray.
Blue gum
an Australian myrtaceous tree (Eucalyptus globulus), of the loftiest proportions, now cultivated in tropical and warm temperate regions for its timber, and as a protection against malaria. The essential oil is beginning to be used in medicine. The timber is very useful. See Eucalyptus.
Blue jack
blue vitriol; sulphate of copper.
Blue jacket
a man-of war's man; a sailor wearing a naval uniform.
Blue jaundice
See under Jaundice.
Blue laws
a name first used in the eighteenth century to describe certain supposititious laws of extreme rigor reported to have been enacted in New Haven; hence, any puritanical laws.
Blue light
a composition which burns with a brilliant blue flame; - used in pyrotechnics and as a night signal at sea, and in military operations.
Blue mantle
(Her.) one of the four pursuivants of the English college of arms; - so called from the color of his official robes.
Blue mass
a preparation of mercury from which is formed the blue pill.
Blue mold
the blue fungus (Aspergillus glaucus) which grows on cheese.
- McElrath.
Blue Monday
a - a Monday following a Sunday of dissipation, or itself given to dissipation (as the Monday before Lent).
- Brande & C.
b - a Monday considered as depressing because it is a workday in contrast to the relaxation of the weekend.
Blue ointment
(Med.) mercurial ointment.
Blue Peter
(British Marine) a blue flag with a white square in the center, used as a signal for sailing, to recall boats, etc. It is a corruption of blue repeater, one of the British signal flags.
Blue pill
a - (Med.) A pill of prepared mercury, used as an aperient, etc.
b - Blue mass.
Blue ribbon
a - The ribbon worn by members of the order of the Garter; - hence, a member of that order.
b - Anything the attainment of which is an object of great ambition; a distinction; a prize.
c - The distinctive badge of certain temperance or total abstinence organizations, as of the Blue ribbon Army.
- blue ribbon
Blue ruin
utter ruin; also, gin.
Blue spar
(Min.) azure spar; lazulite. See Lazulite.
- Carlyle.
Blue thrush
(Zool.) a European and Asiatic thrush (Petrocossyphus cyaneas).
Blue verditer
See Verditer.
Blue vitriol
(Chem.) sulphate of copper, a violet blue crystallized salt, used in electric batteries, calico printing, etc.
Blue water
the open ocean.
Big Blue
the International Business Machines corporation.
To look blue
to look disheartened or dejected.
True blue
genuine and thorough; not modified, nor mixed; not spurious; specifically, of uncompromising Presbyterianism, blue being the color adopted by the Covenanters.
For his religion . . .
'T was Presbyterian, true blue.
- Hudibras.
n.1.One of the seven colors into which the rays of light divide themselves, when refracted through a glass prism; the color of the clear sky, or a color resembling that, whether lighter or darker; a pigment having such color.
2.A pedantic woman; a bluestocking.
3.Low spirits; a fit of despondency; melancholy.
Berlin blue
Prussian blue.
Mineral blue
See under Mineral.
Prussian blue
See under Prussian.
v. t.1.To make blue; to dye of a blue color; to make blue by heating, as metals, etc.
[imp. & p. p. Blued ( ); p. pr. & vb. n. Bluing.]

Related Words

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Blowpipe analysis
Blowpipe reaction
Blue asbestus
Blue black
Blue blood
Blue bonnet
Blue book
Blue buck
Blue cod
Blue crab
Blue curls
blue darter
Blue devils
Blue fire
Blue gage
Blue grass
Blue gum
Blue Hen State
Blue jack
Blue jacket
Blue jaundice
Blue jay
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