# weight

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## weight

[wāt]
1. heaviness; the degree to which a body is drawn toward the earth by gravity. (See also Tables of Weights and Measures in the Appendix.) Abbreviated wt.
2. in statistics, the process of assigning greater importance to some observations than to others, or a mathematical factor used to apply such a process.
apothecaries' weight see apothecaries' system.
atomic weight the sum of the masses of the constituents of an atom, expressed in atomic mass units (or daltons), in SI units (i.e., kilograms), or as a dimensionless ratio derived by comparing the mass to the mass of an atom of carbon-12, which is taken as 12.000. Abbreviated At wt.
avoirdupois weight see avoirdupois system.
equivalent weight the amount of substance that combines with or displaces 8.0 g of oxygen (or 1.008 g of hydrogen), usually expressed in grams; for acid/base reactions, one equivalent donates or receives a mole of protons and the equivalent weight is the ratio of the molecular weight to the number of protons involved in the reaction. For oxidation-reduction reactions, one equivalent donates or receives a mole of electrons and the equivalent weight is the ratio of the molecular weight to the number of electrons involved in the reaction.
gram molecular weight the molecular weight of a substance expressed in grams; one gram molecular weight of a molecular substance contains one mole of molecules. See also mole1.
low birth weight (LBW) see under infant.
molecular weight the weight of a molecule of a chemical compound as compared with the weight of an atom of carbon-12; it is equal to the sum of the weights of its constituent atoms and is dimensionless. Abbreviated Mol wt or MW. Although widely used, the term is not technically correct; relative molecular mass is preferable.
very low birth weight (VLBW) see under infant.

## weight

(wāt),
1. In scientific usage, the product of the force of gravity, defined internationally as 9.80665 m/s2, times the mass of the body.
2. In common usage, the apparent mass of a body when measured in air by comparison to standard masses of prescribed composition, the effects of the buoyancy of air being ignored.
3. A piece of material, usually metal, of known mass, used as a comparison object in weighing.
4. In statistics, a procedure to assign differential importance to certain observations at the expense of others, or a numerical factor employed in applying such a procedure.
[A.S. gewiht]

## weight

(wāt)
1. heaviness; the degree to which a body is drawn toward the earth by gravity. Abbreviated wt.
2. in statistics, the process of assigning greater importance to some observations than to others, or a mathematical factor used to apply such a process.

apothecaries' weight  a system of weights used in compounding prescriptions, based on the grain (64.8 mg). Its units are the scruple (20 grains), dram (3 scruples), ounce (8 drams), and pound (12 ounces).
atomic weight  the sum of the masses of the constituents of an atom; it can be expressed in atomic mass units, SI units, or as a dimensionless ratio based on its value relative to the 12C isotope of carbon, defined as 12.00000. Abbreviated At wt.
avoirdupois weight  the system of weight commonly used for ordinary commodities in English-speaking countries; its units are the grain, dram (27.344 grains), ounce (16 drams), and pound (16 ounces).
equivalent weight  the amount of a substance that combines with or displaces 8.0 g of oxygen (or 1.008 g of hydrogen); it is the ratio of the molecular weight to the number of protons (acid/base reactions) or electrons (redox reactions) involved in the reaction.
molecular weight  the weight of a molecule of a substance as compared with that of an atom of carbon-12; it is equal to the sum of the atomic weights of its constituent atoms and is dimensionless. Abbreviated Mol wt or MW. Although widely used, it is not technically correct; relative molecular mass (M r) is preferable.

## weight (wt)

[wāt]
Etymology: AS, gewiht
the force exerted on a body by gravitational attraction. As a body moves away from the earth, the weight of the body decreases, but the mass remains constant. In empty space a body has mass but no weight. Weight is sometimes measured in units of force such as newtons or poundals, but it is usually expressed in pounds or kilograms, as is mass. See also mass.

## weight

Physics The mass of a body multiplied by the force of gravity. See Atomic weight, Molecular weight Physiology The mass of a person, a measure of health. See Critical weight, Desirable weight, Extremely low birth weight, Healthy weight, Ideal body weight, Lean body weight, Low birth weight, Obesity, Overweight, Very low birth weight Statistics The relative importance of a datum.

## weight

(wāt)
The product of the force of gravity, defined internationally as 9.81 (m/sec)/sec, × the mass of the body.
[A.S. gewiht]

## weight

the force due to the effect of gravity on the mass of a body or object. Can be calculated by multiplying the mass by the acceleration due to gravity. Correctly, expressed in newtons. Commonly (usually, in the public context) but incorrectly referred to in units of mass (e.g. kg).

## weight

force imposed by a body, i.e. product of its mass (in kg) and acceleration due to gravity (i.e. 980.665cm/s2); recorded in newtons (N) (see newton)

## weight

(wāt)
1. In scientific usage, product of the force of gravity, defined internationally as 9.80665 m/s2, times the mass of the body.
2. In common usage, apparent mass of a body when measured in air by comparison to standard masses of prescribed composition, the effects of the buoyancy of air being ignored.
3. A piece of material, usually metal, of known mass, used as a comparison object in weighing.
[A.S. gewiht]

## weight,

n the product of the gravitational acceleration of one body and the mass of an attracted body; the measurement in pounds and ounces of how heavy an object is. In the metric system, weight (force) is measured in kg × m/sec2.
weight, molecular
n the sum of the atomic weights of all atoms in a molecule.
weight, rubber dam,
n a piece of metal varying in shape and weight, attached to a clip that is hung on the bottom of a placed rubber dam to keep the field of operation clear.

## weight

heaviness; the degree to which a body is drawn toward the earth by gravity. See also Tables 4.1 and 4.2.

apothecaries' weight
an outmoded system of weight used in compounding prescriptions based on the grain (equivalent 64.8 mg). Its units are the scruple (20 grains), dram (3 scruples), ounce (8 drams) and pound (12 ounces). See also Tables 4.2 and 4.3.
atomic weight
the weight of an atom of a chemical element, compared with the weight of an atom of carbon-12, which is taken as 12.00000.
avoirdupois weight
the system of weight still used for ordinary commodities in some English-speaking countries. Its units are the dram (27.344 grains), ounce (16 drams) and pound (16 ounces).
birth weight
weight of the newborn at the time of birth.
body weight
the animal's weight. In herbivores this is often debatable because of the variation in 'gut-fill' depending on the availability of palatable food. In the absence of scales the weights of large animals are often estimated on the basis of their age and their girth just behind the elbow. Called also liveweight. See also body condition score.
body weight-to-surface area
determination of many drug dosages is physiologically more accurate when based on body surface area rather than body weight; used particularly in cancer chemotherapy. For conversion table for use in dogs see Table 21.
equivalent weight
the weight in grams of a substance that is equivalent in a chemical reaction to 1.008 g of hydrogen. See also chemical equivalent.
weight gain
increase in body weight for specific periods; the principal measure of productivity in meat animals.
weight loss
the loss of body weight from that previously measured. This estimate must take into account the difference in 'gut-fill' and the effects of developing pregnancy and recent parturition.
metric weight
see Tables 4.1 and 4.2.
molecular weight
the weight of a molecule of a chemical compound as compared with the weight of an atom of carbon-12; it is equal to the sum of the weights of its constituent atoms. Abbreviated mol. wt. See also Table 6.
shifting weight limb to limb
sign indicative of lameness especially in horses; while standing the horse is continually shifting its weight from one limb to the opposite one of the pair.

Q. I am uncomfortable with my weight. My very close friend who is out of my country is planning to come to my place next month. It is going to be our first meeting. I am uncomfortable with my weight. How Fast Can I Lose Weight?

A. A friend should accept you just the way you are. You should do the same.

Its just apprehension or anxiety from the first encounter. That's to be expected. Your friend is probably feeling the same kinds of things.

Q. What are good ways to loose weight?

A. diet and exercise,start a nutrional diet,eating fruits and veggies,stay away from fried foods,and remember to exercise,what ever exercise works best for you,diet with no exercise will leave you with flabby skin,

Q. how to lose weight without losing muscles

A. Exercise, especially one that increase the muscle mass of your body (i.e. weight lifting). In addition to the (relatively small) caloric expenditure during the exercise time itself, it's main effect is an increase in the BMR - the energy your body expends regularly, so you actually burn more calories during your daily life, even when not exercising.

Paradoxically, this will result in gaining (or not losing) weight, but with decrease in the body fat percentage, which means that the body lose fat and build muscle.

This kind of exercise is more suitable for men, since due to the lack of androgens women have much less potential to increase the muscle mass.

And of course remember you should consult your doctor before you start any exercise plan.

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