diameter


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diameter

 [di-am´ĕ-ter]
the length of a straight line passing through the center of a circle and connecting opposite points on its circumference; hence the distance between the two specified opposite points on the periphery of a structure such as the cranium or pelvis.
cranial d's (craniometric d's) imaginary lines connecting points on opposite surfaces of the cranium; the most important are biparietal, that joining the parietal eminences; bitemporal, that joining the extremities of the coronal suture; cervicobregmatic, that joining the center of the anterior fontanel and the junction of the neck with the floor of the mouth; frontomental, that joining the forehead and chin; occipitofrontal, that joining the external occipital protuberance and the most prominent midpoint of the frontal bone; occipitomental, that joining the external occipital protuberance and the most prominent midpoint of the chin; suboccipitobregmatic, that joining the lowest posterior point of the occiput and the center of the anterior fontanel.
pelvic diameter see pelvic diameter.

di·am·e·ter

(dī-am'ĕ-tĕr),
1. A straight line connecting two opposite points on the surface of a more or less spheric or cylindric body, or at the boundary of an opening or foramen, passing through the center of such body or opening.
2. The distance measured along such a line.
[G. diametros, fr. dia, through, + metron, measure]

di·am·e·ter

(dī-am'ĕ-tĕr)
1. A straight line connecting two opposite points on the surface of a more or less spheric or cylindric body, or at the boundary of an opening or foramen, passing through the center of such body or opening.
2. The distance measured along such a line.
[G. diametros, fr. dia, through, + metron, measure]
References in periodicals archive ?
The papers [1] and [9] inspired us to consider diameter 2 properties in the context of M-ideals.
(3) Ventral transverse diameter: diameter between the iliopectineal eminences.
BICS deployed the Acme Packet Net-Net Diameter director to scale its global LTE roaming service, providing a single connection to mobile service providers for global connectivity.
As an LTE Diameter traffic demand model, the Index serves as a reference point from which service providers can layer on critical factors such as network architecture, topology, capacity requirements, geo-redundancy and other implementation-specific factors that are needed to architect a robust, reliable and scalable Diameter Network.
Clients working with pipes and tubes wanted to use stock and parts diameters. Clients from construction businesses wanted to use material types (I-Beams, T-Beams, etc).
The split sleeves are then put in place as the spring slides over the major diameter of the firing-pin shaft in preparation for a trial fit and final reassembly.
Compared with term infants, the preterm infants' mean bifrontal diameter was 13% smaller, their biparietal diameter was 14% smaller, and their transverse cerebellar diameter was 9% smaller.
This criterion is defined as the minimum internal diameter divided by the maximum outside diameter.
Coughing or sneezing generates a substantial quantity of particles, a large number of which are <5-10 [micro]m in diameter [reviewed in (10)].
Your part print may also tell you the major diameter of the thread.
The color change appears to occur often before a melanoma exhibits a change in diameter, meaning it can signal a melanoma long before its diameter reaches 6 mm, said Dr.
The ABCD criteria for melanoma detection are; A for asymmetry; B for irregular borders; C for multiple colors; and D for a diameter greater than 6 mm.