## Annulus Sentence Examples

- There is, in birds, no
**annulus**tympanicus. - The annuli into which segments are externally divided are so deeply incised as to render it impossible to distinguish, as can be readily done in the Oligochaeta as a rule, the limits of an
**annulus**from that of a true segment. - Cap. 3) - " Nullus hiatus est, nulla fractio, nulla dispersio formarum, invicem connexa sunt velut
**annulus**annulo "; but it is almost clear that he was thinking only of a chain. - It has been found by Sir William Herschel and others that the definition of a telescope is often improved by stopping off a part of the central area of the object-glass; but the advantage to be obtained in this way is in no case great, and anything like a reduction of the aperture to a narrow
**annulus**is attended by a development of the external luminous rings sufficient to outweigh any improvement due to the diminished diameter of the central area.' - A, the
**annulus**, or remnant of C, longitudinal section of mature velum partiale. - The expression for w in (i) § 29 may be increased by the addition of the term im log z =-m0 + im log r, (1) representing vortex motion circulating round the
**annulus**of liquid. - Ann, Chitinous
**annulus**, containing air cavities which enable the stato blast to float. - Then consider a thin
**annulus**thin of the wire of width dx; the charge on it is equal to thin rod. - 21rry/dx units, and the potential V at a point on the axis at a distance x from the
**annulus**due to this elementary charge is ll2 2?rrc V=2 j o (r2+x2) dx=47rrvj log e (2l+1,/ r2 +412 ') - loge'} If, then, r is small compared with 1, we have V =47rry log e llr. - The figure Abdc is a sector of an
**annulus**, which is the portion of a circle left after cutting out a concentric circle. - The section of a solid of revolution by a plane at right angles to the axis is an
**annulus**or a sector of an**annulus**(fig. - By unrolling each such element (§ 30) into a sector of a circular
**annulus**, it will be found that the total area of the surface is M'. - " Concentric circles " are, as the name obviously shows, circles having the same centre; the figure enclosed by the circumferences of two concentric circles is an "
**annulus**" (fig. - A, The
**annulus**, or remnant of B, The mature plant. - The sporangia (pollen-sacs), which occur on the under-side of the stamens, are often arranged in more or less definite groups or sori, interspersed with hairs (paraphyses); dehiscence takes place along a line marked out by the occurrence of smaller and thinner-walled cells bounded by larger and thickerwalled elements, which form a fairly prominent cap-like "
**annulus**" near the apex of the sporangium, not unlike the**annulus**characteristic of the Schizaeaceae among ferns.