Word Finder - filament

definition

A fine thread or wire.

definition

Such a wire, as can be heated until it glows, in an incandescent light bulb or a thermionic valve.

definition

A massive, thread-like structure, such as those gaseous ones which extend outward from the surface of the sun, or such as those (much larger) ones which form the boundaries between large voids in the universe.

example

galaxy filament

definition

The stalk of a flower stamen, supporting the anther.

definition

A continuous object, limited in length only by its spool, and not cut to length.

Each palpacle is a tactile filament, very extensile, without accessory filaments or nematocysts.

Cephalic shield continuous with neck; twelve to fourteen stomachal plates; a posterior pallial filament passing through a notch in shell.

Indeed the genus Oedogonium exhibits a high degree of specialization in its reproductive system, considering that its thallus has not advanced beyond the stage of an unbranched filament.

The anther is developed before the filament, and is always sessile in the first instance, and sometimes continues so.

The anther-lobes are united to the connective, which is either continuous with the filament or articulated with it.

Each filament is made up of many molecules of a protein called tau.

The tail varies much in length and shape according to the species; sometimes it is rounded at the end, sometimes more or less acutely pointed, or even terminating in a filament.

The thallus in all cases consists of a branched filament of cells placed end to end, as in many of the Green Algae.

The poles at the ends of an infinitely thin uniform magnet, or magnetic filament, would act as definite centres of force.

If through every point of a small closed curve the vortex lines are drawn, a tube is obtained, and the fluid contained is called a vortex filament.

The four orders now retained exhibit successive stages in the modification of the ctenidia by reflection and concrescence of the filament, but other organs, such as the heart, adductors, renal organs, may not show corresponding stages.

At f and g occurs the breaking up of the filament into rodlets.

In some filamentous forms this " fragmentation " into multicellular pieces of equal length or nearly so is a normal phenomenon, each partial filament repeat s ing the growth, division and q?

If the cells remain connected the resulting filament repeats these processes of elongation and subsequent division uniformly so long as the conditions are maintained, and very accurate measurements have been obtained on such a form, e.g.

Hardy has shown that such a destruction of part of the filament may be effected by the attacks of another organism.

The abscissae represent intervals of time, the ordinates the measured lengths of the growing filament.

Thus, at 2.33 the length of the filament was 6; at 5.45, at 8 P.M., 70 and so on.

If we place the base of the filament in each case on a base line in the order of the successive times of observation recorded, and at distances apart proportional to the intervals of time (8.30, 10.0, 10.30, 11.40, and so on) and erect the straightened-out filaments, the proportional length of each of which is here given for each period, a line joining the tips of the filaments gives the curve of growth.

Stages of growth of a sheathed filament - a at 9 A.M., b at 3 P.M., cat 9 P.M., d at I I A.M.

In Siphonopodiidae it ends in a disk with papillated margins, and in Pulsellum there is a filament in the centre of the disk.

A typical male flower consists of a central axis bearing numerous spirally-arranged sporophylls (stamens), each of which consists of a slender stalk (filament) terminating distally in a more or less prominent knob or triangular scale, and bearing two or more pollen-sacs (microsporangia) on its lower surface.

The stamens of Araucaria and Agathis are peculiar in bearing several long and narrow free pollen-sacs; these may be compared with the sporangiophores of the horsetails (Equisetum); in Taxus (yew) the filament is attached to the centre of a large circular distal expansion, which bears several pollen-sacs on its under surface.

The lower part of the free edge of every mesentery, whether complete or incomplete, is thrown into numerous puckers or folds, and is furnished with a glandular thickening known as a mesenterial filament.

Each mesentery has a filament; but two of them, namely, the pair farthest from the sulcus, are longer than the rest, and have a different form of filament.

The filament most important in the economy of the angler is the first, which is the longest, terminates in a lappet, and is movable in every direction.

In Scrophularia the fifth stamen appears as a scale-like body; in other Scrophulariaceae, as in Pentstemon, it assumes the form of a filament, with hairs at its apex in place of an anther.

That portion of the filament in contact with the anther-lobes is termed the connective.

Older flower with the stamens (S) anther is developed o n the c orolla dried up.er(X2) dth e hairs before the filament, and when the latter is not produced, the anther is sessile, as in the mistletoe.

The filament is usually, as its name imports, filiform or threadlike, and cylindrical, or slightly tapering towards its summit.

In some instances, as in Tamarix gallica, Peganum Harmala, and Campanula, the base of the filament is much dilated, and ends suddenly in a narrow thread-like portion.

The filament is generally continuous from one end to the other, but in some cases it is bent or jointed, becoming geniculate; at other times, as in the pellitory, it is spiral.

Hairs, scales, teeth or processes of different kinds are some times developed on the filament.

In Lauraceae there are perfect stamens, each having at the base of the filament two abortive stamens or staminodes, which may be analogous to stipules.

The anther entire (a) with its filament; section of anther (b) showing the four loculi.

That part of the anther to which the filament is attached is the back, the opposite being the face.

When the filament is continuous with the connective, and is prolonged so that the anther-lobes appear to be united to it throughout their whole length, and lie in apposition to it and on both sides of it, the anther is said to be adnate or adherent; when the filament ends at the base of the anther, then the latter is innate or erect.

The connective is joined to the filament by a movable joint forming a lever which plays an important part in the pollinationmechanism.

In Scrophularia the fifth stamen appears in the form of a scale; and in many Pentstemons it is reduced to a filament with hairs or a shrivelled membrane at the apex.

The thin filament is made of a protein called actin.

We conclude that precise control of actin filament dynamics by UNC-60B is required for proper integration of actin into myofibrils.

Under the microscope, dark-ground illumination reveals the details of one of the darker anthers and its filament.

The tungsten bulb has a relatively large, tightly wound filament.

Different types of light bulbs for lamps Using filament bulbs The most commonly used bulbs are filament light bulbs.

The model is applied in evaluation of a remote virtual cathode system for use with the display using thermionic filament cathodes.

There is more energy needed to eject the droplet and also the droplets are formed with a filament.

Under some conditions cofilin severs actin filaments, providing new plus ends for nucleation of actin filament growth.

Each motor drives a protruding helical filament, and the rotating filaments provide the propulsive force for cells to swim.

A type of intermediate filament found in epithelial cells.

The thicker filament also means that the bulbs are more robust.

Video recording showed the fluorescent actin filament rotating like a propeller.