He heard an almost imperceptible chuckle.
It is, however, probable that the one class runs into the other by imperceptible gradations.
He found that the electricity of the tourmaline decreased rapidly from the summits or poles towards the middle of the crystal, where it was imperceptible; and he discovered that if a tourmaline is broken into any number of fragments, each fragment, when excited, has two opposite poles.
The emotions were almost imperceptible, and it had taken her a long time of studying him to read him.
For example, from the evidence of molar changes due to the obvious parts of bodies, science first comes to believe in molecular changes due to imperceptible particles, and then tries to conceive the ideas of particles, molecules, atoms, electrons.
But on the road, the highroad along which the troops marched, there was no such freshness even at night or when the road passed through the forest; the dew was imperceptible on the sandy dust churned up more than six inches deep.
These earthquake shocks have two distinct characteristics, a slight vibration, sometimes almost imperceptible, called a temblor, generally occurring at frequent intervals, and a violent horizontal or rotary vibration, or motion, also repeated at frequent intervals, called a terremoto, which is caused by a fracture or displacement of the earth's strata at some particular point, and often results in considerable damage.
It is lenticular in form, brightest near the sun, and shades off by imperceptible gradations, generally becoming invisible at a distance of 90° from the sun.
In severe cases the pulse may become imperceptible, the extremities may become cold, and the patient may pass into coma.
The tundra passes by imperceptible gradations into the moor, bog and heath of warmer climates.
At this stage collapse may set in, the patient become faint, the limbs twitch, the radical pulse become imperceptible, and unconsciousness supervene.
It extends as a completely even plain of snow, with long, almost imperceptible, undulations or waves, at a height of 7000 to 10,000 ft., obliterating the features of the underlying land, the mountains and valleys of which are completely interred.
above the sea, are on the Pontotoc ridge in Tippah and Union counties; and from this ridge there is an almost imperceptible slope south and west from the Appalachian Mountain system.
High overhead, like a gigantic awning, was the slightly concavo-convex main aeroplane, tilted towards the front at an imperceptible angle, and stretched taut.
Thus in many cases the difficulty of supposing that selection has acted on minute and imperceptible initial variations, so small as to have no selective value, may be got rid of.
An extensive water-parting in the north central part of the state, an elevation whose inclination is almost imperceptible, determines the course of three great continental river systems. From this central elevation the land slopes off in all directions, rising again in the extreme north-east corner, where the rugged granite uplift in Cook county, known as the Misquah Hills, reaches an altitude of 2230 ft., the highest point in the state; and in the south-west corner, where an altitude of 1800 ft.
But in both East and West, this theory of his became established only by very imperceptible degrees, and indeed, strictly speaking, the process was never completed.
3 In some cases a piece of land is only an island at high water, and by imperceptible gradation the form passes into a peninsula.
The radio-activity of sea-water is extraordinarily small; indeed in samples taken from 50 fathoms in the Bay of Danzig it was imperceptible, and R.
For there are many almost imperceptible stages of transition from the one to the other; and, for all the principal contentions of Ultramontanism, analogies may be found in the past history of the Catholic Church.
When, on the other hand, the objects of science are properly described as phenomena, what is meant is not this pittance of sensible appearances, but positive facts of all kinds, whether perceptible or imperceptible, whether capable of being experienced or of being inferred from, but beyond, experience, e.g.
If you have small, almost imperceptible marks on your glasses, this might be the best option for you to consider.
The logo may be distorted, smudged, or modified or other alterations made that they hope will be imperceptible to the buyer until after the purchase.
Both Commando and Cosabella have managed to create imperceptible undergarments simply because they understand that the feel of "barely there" is best represented by lingerie that is, in all actuality, barely there.
The titration is complete when the blue colour is so faint that it is almost imperceptible after the flask has been vigorously shaken.
The fifth and sixth volumes of the Origins of Christianity (the Christian Church and Marcus Aurelius) show him reconciled with democracy, confident in the gradual ascent of man, aware that the greatest catastrophes do not really interrupt the sure if imperceptible progress of the world - reconciled also in some measure, if not with the truths, at least with the moral beauties of Catholicism, and with the remembrance of his pious youth.
An absolutely imperceptible physiological difference arising as a variation may be of selective value, and it may carry with it correlated variations which appeal to the human eye but are of no selective value themselves.
Some of these, which may be called " earth-tremors," resemble earthquakes in the rapidity with which they occur, but differ from earthquakes in being imperceptible (owing to the smallness of the motion) until instrumental means are used to detect them.
slope of the Blue Ridge is almost imperceptible, or confused with the numerous mountain slopes that rise above it.
They are comparatively inactive at all seasons; indeed, the action of the tides and back-waters and the tangle of vegetation in the sombre swamps and forests through which they run, often render their currents almost imperceptible at ordinary water.
Some crystallizers are made entirely cylindrical, and are connected to the condenser of the vacuum pan; in order to maintain a partial vacuum in them, some are fitted with cold-water pipes to cool them and with steam pipes to heat them, and some are left open to the atmosphere at the top. But the efficiency of all depends on the process of almost imperceptible yet continuous evaporation and the methodical addition of syrup, and not on the idiosyncrasies of the experts who manage them; and there is no doubt that in large commercial processes of manufacture the simpler the apparatus used for obtaining a desired result, and the more easily it is understood, the better it will be for the manufacturer.
The moraines are of too small relief to be shown on any maps but those of the largest scale; yet small as they are, they are the chief relief of the prairie states, and, in association with the nearly imperceptible slopes of the till plains, they determine the course of many streams and rivers, which as a whole are consequent upon the surface form of the glacial deposits.
It was nearly imperceptible.
But, in attempting to make this conception quite clear and thinkable, we are forced to represent the connexion of things as a universal substance, the essence of which we conceive as a system of laws which underlies everything and in its own self connects everything, but imperceptible, and known to us merely through the impressions it produces on us, which we call things.
maximus, is almost imperceptible.
They occur no less in structures of masonry and brickwork, but in these cases they generally follow the joints, and are almost imperceptible.
She sensed he demon's imperceptible tension rise.
The richly embroidered blouse, making the breasts imperceptible, is pure materiality, catching light, sparkling another body fragment.
How, in that case, is the imperceptible, " gradual, " bourgeois counterrevolution conceivable?
imperceptible movement of a root has pushed through the foundations of a wall.
imperceptible ethical change in every year or at every instant.
imperceptible variations in paper thickness.
imperceptible nod of quiet acknowledgment.
imperceptible, loss of brain function, usually first noticed as loss of memory.
The herb's delicate flowers have five petals with tiny, almost imperceptible black dots along their margins.
A company based losses at more affect the photographic difference was surprisingly imperceptible.
However Mercedes have pioneered a gearbox that makes the change virtually imperceptible.
The effect is nearly imperceptible because the composition is so effective.
At first there was nothing to confide: the shrinking was quite imperceptible.
Or to be more accurate, their aging slowed enough to become almost imperceptible.
The development of culture is to a certain extent a question of race, and although forming one species, the varieties of mandiffer in almost imperceptible gradations with a complexity defying classification (see Anthropology).
This was a yet further cause of the equating of the two parts of the sacred volume, which went on with an imperceptible crescendo through the first three quarters of the 2nd century, and by the last quarter was fairly complete.
The remainder of the government, which is quite flat, with an imperceptible slope towards the marshes of Pinsk, is known as the Polyesie (see MiNsx).
It is lenticular in form, brightest near the sun, and shades off by imperceptible gradations, generally becoming invisible at a distance of 90Ã‚° from the sun.
Each has its own flaws, no matter how imperceptible they might be.
The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.