Word Finder - stratum

definition

One of several parallel horizontal layers of material arranged one on top of another.

synonyms

• tier

definition

A layer of sedimentary rock having approximately the same composition throughout.

synonyms

• bed
• layer

definition

Any of the regions of the atmosphere, such as the stratosphere, that occur as layers.

definition

A layer of tissue.

definition

A class of society composed of people with similar social, cultural, or economic status.

definition

A layer of vegetation, usually of similar height.

definition

The level of accuracy of a computer's clock, relative to others on the network.

The stratum of ashes was from 50 cm.

He considered, at every instant, the actual motion of a stratum as composed of a motion which it had in the preceding instant and of a motion which it had lost; and the laws of equilibrium between the motions lost furnished him with equations representing the motion of the fluid.

The second stratum of the town lies ten minutes' climb up the side of the island.

As there are only one or two small stretches of arable land in Ithaca, the inhabitants are dependent on commerce for their grain supply; and olive oil, wine and currants are the principal products obtained by the cultivation of the thin stratum of soil that covers the calcareous rocks.

Symbols like the letters of the alphabet have been found in European soil painted upon pebbles belonging to a stratum between the Palaeolithic and Neolithic age.

This has continued regularly ever since, but has been carried down no farther than the imperial stratum.

If the liquid forms a stratum of thickness c, then x = x' - 47rpo(o) +27rpo(z) +27rpo(Z - c).

The 7th tablet continues the Eabani stratum.

After this the metal is allowed to rest for a time in the pot at a temperature above its freezing point and is then ladled out into ingot forms, care being taken at each stage to ladle off the top stratum.

Six chambers were thus formed which showed the chaste beauty of Greek workmanship, while the stratum of native rock which covered them gave a touch of nature and made them caves.

The Blue Clay forms, at the higher levels, a stratum impervious to water, and holds up the rainfall, which soaks through the spongy mass of the superimposed coralline formations.

In repairing the modern road just outside the south entrance to the tunnel, a stratum of carbonized corn, beans, &c., and a quantity of burnt wood, stones, tiles, pottery, &c., was found under and above the modern road, for a distance of some Soo yds.

It is one of the most important problems in ancient history to determine what was the ethnological relation of these tribes, whom we may call " Safine," to the people of Rome on the one hand, and the earlier stratum or strata of population in Italy on the other.

When the subsoil is too compact to be pervious to water, effectual drainage must be resorted to; when it is very loose, so that it drains away the fertile ingredients of the soil as well as those which are artificially supplied, the compactness of the stratum should be increased by the addition of clay, marl or loam.

It is asserted, too, that some of the earliest tombs of the necropolis of Alba Longa were found beneath a stratum of peperino.

The south-western part of the country, a vast and almost level plain, is known as Dar Homr. A granitic sand with abundance of mica and feldspar forms the upper stratum throughout the greater part of Kordofan; but an admixture of clay, which is observable in the north, becomes strongly marked in the south, where there are also stretches of black vegetable mould.

It is estimated that (apart from those in a few areas where the sand stratum is thin and water is reached at the depth of a few feet) there are about 900 of these wells.

The quantity of heat absorbed by the stratum (x' x") in the interval considered can also be expressed in terms of the calorimetric conductivity k.

The heat absorbed is the difference of the quantities transmitted through the bounding planes of the stratum.

A new standard of sumptuousness and splendour was set up in the richest stratum of society.

Great as it was, it created no empire outside the Nile valley, and its most imposing monument, which according to the testimony of the ancients rivalled the pyramids, is now represented by a vast stratum of chips.

He nominates the Sheikh ul-Islam or mufti (q.v.) of Constantinople (grand mufti), who is his representative in the imamate and issues judgments in points of faith and law from which there is no appeal; but the nomination must fall on one of the mollahs, 2 who form the upper stratum of the hierarchy of ulema.

A cement for Derbyshire spar and china, &c., is composed of 7 parts of rosin and i of wax, with a little plaster of Paris; a small quantity only should be applied to the surfaces to be united, for, as a general rule, the thinner the stratum of a cement, the more powerful its action.

In summer this wind produces a dense stratum of sea-cloud (cumuloni), 500 ft.

This does not reach up to the mountains, which have on every side a stratum of their own, about 1000 ft.

For the layer, which he now assigns to the Mycenaean period, is the sixth stratum from below.

Struve developed the view that the stars are contained in a comparatively thin stratum bounded by two parallel planes.

Imagine this stratum to be uniformly filled with stars (of course in the actual universe instead of sharply defined boundaries AB and CD, we shall have a gradual thinning out of the stars) it follows that in the two directions SP and SP' the fewest stars will be seen; these then are the directions of the galactic poles.

One stratum is marked by painted pottery of good make, similar to that found in a corresponding stratum in Susa, and resembling the early pottery of the Aegean region more closely than any later pottery found in Babylonia.

The upper stratum is struck at a depth of 600 to 700 ft., and yields a natural liquid fuel of heavy specific gravity.

The rippled stalks are tied in small bundles and packed, roots downwards, in the dams till they are quite full; over the top of the upper layer is placed a stratum of rushes and straw, or sods with the grassy side downwards, and above all stones of sufficient weight to keep the flax submerged.

Mannhardt, and a lower stratum of beliefs and rites began to emerge into view beneath the poetic forms of the more developed mythologies.

Wood removed the whole stratum of superficial deposit, nearly 20 ft.

But the restriction of the clearance to the upper stratum of deposit has prevented the acquisition of much further knowledge.

The chapter as a whole must be assigned to a later stratum of P, for while vv.

The direct effect of the attraction is to increase the pressure of the stratum of the fluid in contact with the solid, so as to make it greater than the pressure in the interior of the fluid.

The result of this pressure if unopposed is to cause this stratum to spread itself over the surface of the solid as a drop of water is observed to do when placed on a clean horizontal glass plate, and this even when gravity opposes the action, as when the drop is placed on the under surface of the plate.

If the thickness of the film is greater than 2E, there will be a stratum of thickness c-2E in the middle of the film, within which the values of p and x will be pc and In the two strata on either side of this the law, according to which p and x depend on the depth, will be the same as in a liquid mass of large dimensions.

Let us examine the case in which the particle m is placed at a distance z from a curved stratum of the substance, whose principal radii of curvature are R 1 and R2.

Let the plane of the paper be a normal section of the surface of the stratum at the point B, making an angle w with the FIG.

The surface-density of this stratum is a = cp. The energy per unit of area is e = f xpdz=cp(X' -4lrpe(o))+27rp'f c 0(z) dz+27rp fee(c - z)dz.

Since the two sides of the stratum are similar the last two terms are equal, and Differentiating with respect to c, we find dc = P' d p(x ' -41rpe (0))+47rp20(c).

The second minus the first, or the increase in the sum of tensions, is thus 2 (U n - o' n+l) (o n+ 1 - Q n +2) Hence, if an+1 be intermediate in magnitude between a,, and a71+2, the sum of tensions is increased by the abolition of the stratum; but, if a-n+1 be not intermediate, the sum is decreased.

We see, then, that the removal of a stratum from between neighbours where it is out of order and its introduction between neighbours where it will be in order is doubly favourable to the reduction of the sum of tensions; and since by a succession of such steps we may arrive at the order of magnitude throughout, we conclude that this is the disposition of minimum tensions and energy.

But it is not likely that any birth-legend belongs to the earliest stratum of the Zeus-religion.

It was hoped that when the aeroplanes were wedged forward in the air by vertical screws, or by the body to be flown, each aeroplane would rest or float upon a stratum of undisturbed air, and that practically the aeroplanes would give the same support as if spread out horizontally.

The chalk and limestone plateaus are usually almost without inhabitants, and the villages of these districts occur grouped together in long strings, either in drift-floored valleys in the calcareous plateaus, or along the exposure of some favoured stratum at their base.

The dissection of the great east and west anticline in the south-east of England has resulted in a remarkable piece of country, occupying the east of Hampshire and practically the whole of Sussex, Surrey and Kent, in which each geological stratum produces its own type of scenery, and exercises its own specific influence on every natural distribution.

This is due to a stratum of hot air at some distance above the sea level, the rays of light near the horizon being practically horizontal, while those at greater elevations are fairly concave.

No traces of the ancient city, except of its necropolis, the tombs of which are overlaid with a stratum of peperino 3 ft.