YEARLING:

YEARLING:

                         An animal in its second year

             A  term used for an animal b\w age 1 to 2 years

YIELD:

Production of a certain amount from an animals or area of land  yield also Be relevant return of capitals.

YOKE:

A pair of draft animals joined by a yoke. It wooden frame by which draught  bullocks for pulling the load .

YOLK:

The food stored  of an egg or ovum animals for the nutrition of an embryo (especially the yellow mass of a bird which is rich in fat & protein).

XANTHOPHYLL:

The oxidation product carotenoids found in chloroplast.

XENIA:

Biological  the effect that genes from pollen upon the endosperm.

XEROPHYTES:

                       

Plant adapted for life  with a limited supply of water  as deserts plants such as opuntia , cactus , calotropis etc.

XYLEM:

             Movement Water & dissolved salts take place by roots .

The woody part of plant consist  of a large number of strengthened cells such as fibers, tracheas & vessels that from tubular system from the roots to the shoots.

x :

             It is ten in roman                      (x =10)

Being one more than nine.

The 24th letter of the Roman alphabet.

xx:

              It is twenty in roman                ( x =20)

OR

(Genetics) normal complement of sex chromosomes in a female

 xxx :

              It is thirty in roman                  (x =30)

OR

            (Genetics) abnormal complement of three X chromosomes in a female

TERMS OF AGRICULTURE

ZYGOTE :

                        (genetics) the diploid cell resulting from the union of a haploid spermatozoon and ovum (including the organism that develops from that cell).

                        The fertilized ovum .The cell formed by immediate product of fusion or union of a male and female gametes . The cell produced by results from the fusion of the male gametes  with the female gametes (ova) at fertilization  this occurs when spermatozoa come in to contact with an ovum at fertilization this product of united gametes of an organism.

ZYGOMORPHIC:

                        The term of applied to the flowers which can  be divided in to equal halves in longitudinal one plane passing through the axis.

ZOOSPORE :

                        An asexual spore of some   algae  and fungi that moves by means of flagella.

ZOOPLANKTON:

                        The  animal  community which floats in marine and fresh water with the water content.

ZOOPHILY:

                        The process in which  pollination by pollen in the plants is carried by animals.

ZOOLOGY :

                        Zoo means Animals +logy means study

 It is the  study of animals  which  is branch of science ( BIO LOGY).

ZONE ;                       

Any of the regions of the surface of the Earth loosely divided according to latitude or longitude.

ZERO TILLAGE :

                        It refers to no tillage in which the crop is planted in unprepared soil by opening a narrow slot trench or band only of sufficient width and depth to obtain proper seed coverage .the  cultivation  of crops without tillage practices is called zero tillage  where the seed sown with direct seeding drills as to control weeds by herbicides used .

ZERO STRESS:

                        A level of response of the a plant neither to an environmental factors that leads neither to injury   nor  to reduction in growth.

ZAMINDAR  OWNER                        

A person who owns something such as lands , buildings etc.

every day science

Torque :

The turning effort applied to the shaft, as that of steam engine by the various cranks .The term originated in electrical engineering.

Torque efficiency:

                        The ratio of the actual torque of a motor the torque which it would exert if free from frictional forces.

Torsion:

In mechanics, that force with which a thread wire or rod of any material depends to return to state of rest after being twisted.

(2) The act of turning or twisting or the state of being twisted.

Tensional stiffness:

In mechanics that the amount of rigidity of a shaft by which it is enabled to resist ,not simply such strains would produce actual twisting off but also such excessive vibrations as would prevent it from doing it work with due steadness.

Torsional strain :

The effect setup in the body by the torsional stress which tends to rupture  it by twisting one fiber around an other.

Torsional strength:

 Resistance to being twisted or wrenched off in direction about its axis as in case of shafting.

Engine:

                        Compound machine.

Diesel engine  :

A diesel engine is an oil engine which uses low grade oil and iginates this fuel by the heat of air compression.

Petrol engine :

It is an engine that require high grade oil, gasoline and ignites it by an electric spark after the gasoline has been mixed with air in carburetor and compressed.

Weir :

it is defined as it the full of the vessels or tank the water flows over the wall is called weir.

Pascal law:

it states that intensity of pressure at any point in a fluid (liquid +gas) at rest ,is the same in all direction.

Piezo meter :

it is simple from manometer it is used to measure the moderate pressure.

 Vaccum:

Any pressure which is less than atmospheric pressure is known as vaccum .

Simple manometer :

simple manometer is an instrument or improved from piezo meter it is like U shape .It has two limbs this instrument measures the medium neither very small nor very large + ve and negative pressure.

Hydrostatic:

The term of  hydrostatic meaning the study of pressure exerted by liquid.

Total pressure:

F/A=W/A

Bernoullis equation:

For parallel in compressed liquid flowing in continuous stream .The total energy of the particle remains the same while the particle moves from one point to an other provided no friction.

Notch:      

An opening is one side of the tanks like large orifice with the up stream liquid level below the top edge of the opening.

                                                       

EVERY DAY SCIENCE

Matter:

 consists of some thing which has weight, occupies space, and which can affect our senses.

Molecule:

Matter is made of molecule. A molecule is the smallest particle of substance which can exist in a free state and possesses.

Mass:

Quality of a matter contained in a body.

Weight:

Force which a body is attracted towards earth.

 Density:

            Mass per unit volume.

Speed:

 It is the rate of motion and a scalar quantity, i.e possesses magnitude only.

Acceleration:

Is the rate of increase of velocity.

Force:

            Is a push or pull which changes or tends to change destroys.

Work:

            When the point of application of the force moves work is said to be done.

Erg:

Is the unit of work and is the amount of work done when a force of one dyne moves a body through 1 cm in the direction of the force. Erg is the CGS unit of work.

Power:

 Rate of doing work is called power.

Energy:

Capacity to do work is called energy.

Potential energy:

Energy due to its position.

Kinetic energy:

            Energy due to motion.

Equilibrium:

Is the force acting on a body produces no change in its state of rest or motion. The body is said in equilibrium.

Lever:

            It is a straight bar which is a capable of a rotation around a fixed point called fulcrum.

Surface tension:

    The force of tension on the account of intermolecular force on the surface of a liquid is called     surface tension.

Calorie:

    Is the amount of heat required to raise the temperature of 1kg of water 1⁰  c.

Temperature:

    Is the degree of hotness in a body.

Latent heat:

                   Is the heat which is spent in the changing the state of a body without raising its temperature.

Total heat:

Total heat ,( a term used in calculation; it represents the units of the heat when the weight of the steam is one pound .It is  the sum of the heat units in the water ,above 32⁰ fahr and the latent heat of the steam.

Sensible heat :

                        (h) It is the heat required to raise the temperature of 1kg of liquid from 0⁰ c to the boiling                             

                        point.