What's the difference between conical and cylindrical?

Conical


Definition:

  • (a.) Having the form of, or resembling, a geometrical cone; round and tapering to a point, or gradually lessening in circumference; as, a conic or conical figure; a conical vessel.
  • (a.) Of or pertaining to a cone; as, conic sections.

Example Sentences:

  • (1) Anterior lenticonus is a rare condition, in which there is a conical or spherical protrusion of the anterior surface into the anterior chamber.
  • (2) Conical root shapes without special provision of retention are not suitable.
  • (3) However, in conical cells the new oral apparatus and fission line form well posterior to the cell equator, so the opisthes are invariably smaller than proters.
  • (4) Their use is indicated in large or total defects to restore the natural anatomical conical shape of the eardrum, particularly in congenital atresia.
  • (5) That of the small conical filiform papillae is to take food efficiently into the oral cavity.
  • (6) Following enlargement of sporozoite buds the apical ends of the buds became conical in longitudinal sections with the newly formed apical rings at their truncated apices and then, newly formed dense inner membranes and subpellicular microtubules gradually extended backwards and finally enclosed the sporozoites.
  • (7) 1) In polishing the axial surface of the inner crown of the conic telescope crown system, the milling machine with a polishing disk facilitated specular finishing without causing undercutting in the region from the occlusal surface to the dental cervix.
  • (8) The study of the effect of dimensions and local organization of net tissue on its electrical properties can be reduced to the problem of investigating electrical properties of conic fibre at different laws of its expansion.
  • (9) The conical shape of the occlusion device is well suited for the anatomic structure of the ductus.
  • (10) Considering both the present data and previous findings, Palaeognath birds appear to be a peculiar and monophyletic group, characterized by: 1), a conical acrosome surrounding the nucleus; 2), a fibrous sheath around most of the axoneme; and 3), an elongated distal centriole occupying the entire midpiece.
  • (11) Scanning electron micrographs showed them to be smooth-surfaced conical to tubular extensions arising from putative photoreceptor inner segments.
  • (12) The sperm consists of a conical head and 100 flagella.
  • (13) Subsequent analysis of a mathematically describable conical geometry demonstrates the need for improved compensator design.
  • (14) Many of the lanceolate receptors contained multiple unmyelinated axons, and the usually highly ordered circular innervation of the inner conical body was markedly abnormal.
  • (15) For osteotomy conic cutters were used (diameter of base 2.1 mm and 5 mm) and a drill (3000 rotations per minute) from the small instrumentarium of SYNTHES Co.
  • (16) The concept of stimulation threshold is generalized to three dimensions, and an excitability surface is constructed, which for cardiac muscle is approximately conical in shape.
  • (17) The results showed that the resisting areas are larger in pyramidal than in conical preparations.
  • (18) The hooks (105 by 24 nm) each displayed a conical protrusion at the proximal end, a concave cavity at the distal end, and helically arranged subunits.
  • (19) In practice, the pins are introduced in the same way as the previously described procedure, by they must protrude beyond the opposite wall by 6-8 mm; the difference is in the screwing of the "ARUM" nut: first it is screwed as the reduction stress is increased so its conical part penetrates between the fracture edges; then the pin is cut; and the nut is unscrewed so the cut end of the pin will be included in the space of its base.
  • (20) Eight conical holes drilled in the side of the chamber serve for the insertion of plugs with attachments for perfusion, rapid injection of small amounts of reagents, temperature measurements or for heating the interior of the chamber.

Cylindrical


Definition:

  • (a.) Having the form of a cylinder, or of a section of its convex surface; partaking of the properties of the cylinder.

Example Sentences:

  • (1) As a consequence of deformation from spherical-to-cylindrical shape in the microvasculature, demands for increased surface membrane area leads to increases in surface membrane tension above critical levels for rupture, and the cancer cells are rapidly and lethally damaged.
  • (2) Typical features associated with infection by either CaMV or TuMV normally occurred in the cytoplasm of cells of both tissues: two types of viroplasms with embedded CaMV particles and cylindrical inclusions induced by TuMV.
  • (3) Flat surfaces could be machined on the originally cylindrical surface to reduce the severity of these aberrations.
  • (4) Studies in human postmortem atheromatous arteries and in animal models in vivo indicate that laser balloon angioplasty, by creating a lumen that approximates the size and smooth cylindrical shape of the balloon, should be effective in the treatment of important causes of restenosis.
  • (5) It is shown that during fasting, especially by the 48th hour, there takes place a significant activation of lysosomal enzymes both in the liver and in the small intestine (in the cells of the cylindrical epithelium).
  • (6) Whereas all extant vertical clingers and leapers share certain femoral traits (i.e., long femur, proximally restricted trochanters, ventrally raised patellar articular surface), Galagidae and Tarsiidae share features of the proximal femur (i.e., cylindrical head, large posterior expansion of articular surface onto the neck) that clearly distinguish them from the specialized leapers of the Malagasy Republic (Indriidae and Lepilemur).
  • (7) The lattice reinforces the cylindrical shape of the cell and permits limited changes in length.
  • (8) In this paper, the three rotational axes are shown to be skewed and off-set from each other, therefore, a three-cylindric open chain with skewed joint axes is proposed to measure the six displacements between the two reference frames.
  • (9) Intact rats and rats bearing lesions of the suprachiasmatic nuclei (SCNX rats) were trained to obtain food by pressing either of two levers located on opposite sides of a cylindrical cage.
  • (10) For training, head restrained animals were oscillated on a turntable in front of an optokinetic pattern projected onto a cylindrical wall.
  • (11) Another candidate is a 166m cylindrical tower that was constructed in the 1970s in Zamalek, Cairo’s elite island, but has remained empty since.
  • (12) The monoclonal antibody 3B6 stain thus forms a cylindrical structure centred on the endplate.
  • (13) As suggested from the high level of sequence similarity of these viral proteins with the recently described superfamilies of helicase-like proteins (3-5), the NTBM-containing cylindrical inclusion (CI) protein from plum pox virus (PPV), which belongs to the potyvirus group of positive strand RNA viruses, is shown to be able to unwind RNA duplexes.
  • (14) We have compared SR of particles determined by this method with SR measured in a cylindrical tube of the same geometry as the ultrasonic measurement cell and with theoretical values of the sedimentation rate given by theoretical models.
  • (15) A model that treats the capillary wall as a barrier containing uniform cylindrical pores, and permeating solutes as hard spheres, is shown to be successful in describing the size-selectivity of the glomerulus.
  • (16) By electron microscopical investigations of the cylindrical epithelium of the human cervix uteri we could show that in ciliar cells a regeneration of ciliars is possible.
  • (17) Experience with the cylindrical mode suggests that this 3-D format, particularly when the reconstructed vascular segment is hemisected, is optimally suited for those cases in which direct inspection of luminal topography is of special interest.
  • (18) Its size (approximately 30 x 50 nm) and distinct cylindrical shape permit easy visualization in the SEM and TEM.
  • (19) In the absence of ether, tube restraint (confinement in a cylindrical acrylic tube) increased alpha MSH secretion and decreased intermediate lobe DOPAC concentrations, whereas ether in the absence of physical restraint had no effect.
  • (20) Type IVa choledochal cysts with cylindrical dilatation of the intrahepatic ducts constitute a relatively less recognized variety of choledochal cysts, and differ from cystic dilatation of intrahepatic ducts in their clinical manifestations and response to treatment.