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a symbol, as a figure or word, expressive of a certain value or a specified quantity determined by count.
atomic number (Z) a number expressive of the number of protons in an atomic nucleus, or the positive charge of the nucleus expressed in terms of the electronic charge.
Avogadro's number (N) (NA) the number of molecules in one mole of a substance: 6.023 × 1023. Called also Avogadro's constant.
CT number the density assigned to a voxel in a CAT scan on an arbitrary scale on which air has a density −1000; water, 0; and compact bone +1000. See also hounsfield unit.
mass number (A) the number of nucleons (protons plus neutrons) in the atom of a nuclide; generally indicated by a superscript preceding the symbol of a chemical element (e.g., 131I), denoting a specific isotope.
oxidation number a number assigned to each atom in a molecule or ion that represents the number of electrons theoretically gained (positive oxidation numbers) or lost (negative numbers) in converting the atom to the elemental form.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


1. A symbol expressive of a certain value or of a specific quantity determined by count.
2. The place of any unit in a series.
Farlex Partner Medical Dictionary © Farlex 2012


Drug slang
A regional term for marijuana cigarette (joint).

Vox populi
A symbol of a value.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


Vox populi A symbol of a value. See Accession number, Burst number, CLIA number, Common account number, Copy number, ID number, Linkage number, Magic number, Mass number, Medicare Indentification number, IP number, MIM number, Primary accession number, Reynolds' number, Secondary accession number, Threshold number, UPIN number, Winding number, Writhe number.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.


1. A symbol expressive of a certain value or of a specific quantity determined by count.
2. The place of any unit in a series.
[L. numero]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


1. A symbol expressive of a certain value or of a specific quantity determined by count.
2. The place of any unit in a series.
[L. numero]
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about number

Q. what is a safe tumor marker number range?

A. depends on the marker...most of the markers are materials that found normally in our body. and there are a number of markers and their levels differentiate. what marker do you mean?

Q. What are the percentage of people dealing with breast cancer out of the number of people that are illness with cancer ? and what is the percentage of death cases out of sum of all cases of breast cases ? is there any difference between the amount of death cases from breast cancer and than the other kinds of cancer ?

A. here's a quote from the CDC site:
"Aside from non-melanoma skin cancer, breast cancer is the most common form of cancer in women. Breast cancer is the number one cause of cancer death in Hispanic women. It is the second most common cause of cancer death in white, black, Asian/Pacific Islander, and American Indian/Alaska Native women."

Q. i have heard that number of scientists found out in one of there researches that breasts Cancer is capable to just disappear with out a treatment , have any one read this article/research ? or maybe just heard about it ? because it is interesting why and how this result happens ...

A. hi pinkofdestiny - try also these links, i know and read a lot about the books of Phillip Day and recommend them to everybody. cancer can be healed and there are also ways to make with success prevention:

before a woman should loose her breast, she should make a therapy with vitamine B17 - the vitamin which can eliminate cancer in any form, but you should not know about it! it is terrible, but it is the way how politicians and industry-trust treat us.

More discussions about number
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References in periodicals archive ?
In the present study, it was also observed that gingival thicknesses of tooth numbers 12 and 22 were greater in the severe crowding group than in the mild and moderate crowding groups.
Variation of tooth number in mammalian dentition: connecting genetics, development, and evolution.
For vaginal plate tooth number, melanogaster is significantly lower than the other three species.
3) Clinical examination (tooth number, cause of extraction, placement date, implant length and diameter, type of stage (I or II), bone graft, membrane, site type (mature, grafted, immediate), crown placement date, crown type (cemented or screw-retained), use of antibiotic, presence of pain, discomfort, pus discharge, amount of keratinized tissue, mobility, avoid eating, porcelain fracture and, screw loosening.
Brook, "A unifying aetiological explanation for anomalies of human tooth number and size," Archives of Oral Biology, vol.
As a result of the clinical and radiographic examination of tooth number 21, a periapical lesion was detected in 3D cross-sectional images obtained using CBCT.
The Kappa scores of intraobserver agreement varied between 0.51 for the tooth number 35 and 0.91 for the tooth number 36, with a mean value of 0.68 for maxillary and 0.70 for mandibular teeth which are substantial agreements according to Landis and Koch, Table 3 [20].
Reduction in tooth number is a common character among sloths, with the two genera of extant tree sloths (the three-toed sloth, Bradypus, and the two-toed sloth, Choloepus) possessing a 5/4 dental formula.
This means that the decrease of the tooth number is an inconvenient factor for the workpiece roughness.
Upon the patients' return, teeth 18, 17, and 16 all had class III furcation involvement with grade 3 mobility; they were extracted under full thickness flap allowing visibility of a 3-wall defect of 10 mm at the mesial of tooth number 13 which was then treated with guided tissue regeneration technique using bovine xenograft bone substitute Bioss[R] and resorbable collagen membrane Resolute[R].
Patients exhibiting, fractures of teeth or ectopically erupted teeth, anomalies of tooth size, anomalies of tooth number (e.g.
Brook proposed that microdontia and hypodontia are linked genetically as a continuum of tooth size, where a tooth will fail to develop if the tooth germ does not reach a particular tooth size and tooth number "thresholds" [27].