Found 2 items, similar to hard water.
English → English
Definition: hard water
n : water that contains salts (as calcium and magnesium ions)
that limit the formation of lather with soap
English → English
Definition: Hard water
(h[aum]rd), a. [Compar. Harder
.] [OE. hard, heard, AS. heard; akin to OS. & D.
hard, G. hart, OHG. herti, harti, Icel. har[eth]r, Dan.
haard, Sw. h[*a]rd, Goth. hardus, Gr. kraty`s strong,
ka`rtos, kra`tos, strength, and also to E. -ard, as in
coward, drunkard, -crat, -cracy in autocrat, democracy; cf.
Skr. kratu strength, k[.r] to do, make. Cf. Hardy
1. Not easily penetrated, cut, or separated into parts; not
yielding to pressure; firm; solid; compact; -- applied to
material bodies, and opposed to soft
; as, hard wood;
hard flesh; a hard apple.
2. Difficult, mentally or judicially; not easily apprehended,
decided, or resolved; as a hard problem.
The hard causes they brought unto Moses. --Ex.
In which are some things hard to be understood. --2
Peter iii. 16.
3. Difficult to accomplish; full of obstacles; laborious;
fatiguing; arduous; as, a hard task; a disease hard to
4. Difficult to resist or control; powerful.
The stag was too hard for the horse. --L'Estrange.
A power which will be always too hard for them.
5. Difficult to bear or endure; not easy to put up with or
consent to; hence, severe; rigorous; oppressive;
distressing; unjust; grasping; as, a hard lot; hard times;
hard fare; a hard winter; hard conditions or terms.
I never could drive a hard bargain. --Burke.
6. Difficult to please or influence; stern; unyielding;
obdurate; unsympathetic; unfeeling; cruel; as, a hard
master; a hard heart; hard words; a hard character.
7. Not easy or agreeable to the taste; harsh; stiff; rigid;
ungraceful; repelling; as, a hard style.
Figures harder than even the marble itself.
8. Rough; acid; sour, as liquors; as, hard cider.
9. (Pron.) Abrupt or explosive in utterance; not aspirated,
sibilated, or pronounced with a gradual change of the
organs from one position to another; -- said of certain
consonants, as c in came, and g in go, as distinguished
from the same letters in center, general, etc.
10. Wanting softness or smoothness of utterance; harsh; as, a
(a) Rigid in the drawing or distribution of the figures;
formal; lacking grace of composition.
(b) Having disagreeable and abrupt contrasts in the
coloring or light and shade.
, Hard case
, etc. See under Cancer
, or Hard-shelled clam
(Zo["o]l.), the quahog.
, anthracite, as distinguished from bituminous coal
Hard and fast
. (Naut.) See under Fast
(Arch.), a smooth finishing coat of hard fine
plaster applied to the surface of rough plastering.
, hardship; difficult conditions.
, coin or specie, as distinguished from paper
(Zo["o]l.), the northern native oyster. [Local,
, the hard stratum of earth lying beneath the soil;
hence, figuratively, the firm, substantial, fundamental
part or quality of anything; as, the hard pan of
character, of a matter in dispute, etc. See Pan
. See under Rubber
. See under Solder
, water, which contains lime or some mineral
substance rendering it unfit for washing. See Hardness
, wood of a solid or hard texture; as walnut, oak,
ash, box, and the like, in distinction from pine, poplar,
In hard condition
, in excellent condition for racing;
having firm muscles; -- said of race horses.
Syn: Solid; arduous; powerful; trying; unyielding; stubborn;
stern; flinty; unfeeling; harsh; difficult; severe;
obdurate; rigid. See Solid
, and Arduous
(w[add]"t[~e]r), n. [AS. w[ae]ter; akin to OS.
watar, OFries. wetir, weter, LG. & D. water, G. wasser, OHG.
wazzar, Icel. vatn, Sw. vatten, Dan. vand, Goth. wat[=o], O.
Slav. & Russ. voda, Gr. 'y`dwr, Skr. udan water, ud to wet,
and perhaps to L. unda wave. [root]137. Cf. Dropsy
1. The fluid which descends from the clouds in rain, and
which forms rivers, lakes, seas, etc. “We will drink
--Shak. “Powers of fire, air, water, and
Note: Pure water consists of hydrogen and oxygen, H2O
is a colorless, odorless, tasteless, transparent
liquid, which is very slightly compressible. At its
maximum density, 39[deg] Fahr. or 4[deg] C., it is the
standard for specific gravities, one cubic centimeter
weighing one gram. It freezes at 32[deg] Fahr. or
0[deg] C. and boils at 212[deg] Fahr. or 100[deg] C.
). It is the most important natural
solvent, and is frequently impregnated with foreign
matter which is mostly removed by distillation; hence,
rain water is nearly pure. It is an important
ingredient in the tissue of animals and plants, the
human body containing about two thirds its weight of
2. A body of water, standing or flowing; a lake, river, or
other collection of water.
Remembering he had passed over a small water a poor
scholar when first coming to the university, he
3. Any liquid secretion, humor, or the like, resembling
water; esp., the urine.
4. (Pharm.) A solution in water of a gaseous or readily
volatile substance; as, ammonia water. --U. S. Pharm.
5. The limpidity and luster of a precious stone, especially a
diamond; as, a diamond of the first water, that is,
perfectly pure and transparent. Hence, of the first water,
that is, of the first excellence.
6. A wavy, lustrous pattern or decoration such as is imparted
to linen, silk, metals, etc. See Water
, v. t., 3,
, v. t., and Damaskeen
7. An addition to the shares representing the capital of a
stock company so that the aggregate par value of the
shares is increased while their value for investment is
diminished, or “diluted.”
Note: Water is often used adjectively and in the formation of
many self-explaining compounds; as, water drainage;
water gauge, or water-gauge; waterfowl, water-fowl, or
water fowl; water-beaten; water-borne, water-circled,
water-girdled, water-rocked, etc.
. See under Hard
Inch of water
, a unit of measure of quantity of water,
being the quantity which will flow through an orifice one
inch square, or a circular orifice one inch in diameter,
in a vertical surface, under a stated constant head; also
called miner's inch
, and water inch
. The shape of the
orifice and the head vary in different localities. In the
Western United States, for hydraulic mining, the standard
aperture is square and the head from 4 to 9 inches above
its center. In Europe, for experimental hydraulics, the
orifice is usually round and the head from 1/2 of an inch
to 1 inch above its top.
, waters which are so impregnated with foreign
ingredients, such as gaseous, sulphureous, and saline
substances, as to give them medicinal properties, or a
particular flavor or temperature.
, water not impregnated with lime or mineral
To hold water
. See under Hold
, v. t.
To keep one's head above water
, to keep afloat; fig., to
avoid failure or sinking in the struggles of life.
To make water
(a) To pass urine. --Swift.
(b) (Naut.) To admit water; to leak.
Water of crystallization
(Chem.), the water combined with
many salts in their crystalline form. This water is
loosely, but, nevertheless, chemically, combined, for it
is held in fixed and definite amount for each substance
containing it. Thus, while pure copper sulphate, CuSO4
is a white amorphous substance, blue vitriol, the
crystallized form, CuSO4.5H2O
, contains five molecules
of water of crystallization.
Water on the brain
Water on the chest
Note: Other phrases, in which water occurs as the first
element, will be found in alphabetical order in the