particle

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Related to Particles: Alpha particles

particle

 [pahr´tĭ-k'l]
an extremely small mass of material.
alpha p's see alpha particles.
beta p's see beta particles.
Dane particle an intact hepatitis B virion.
elementary particle any of the subatomic particles, including electrons, protons, neutrons, positrons, neutrinos, and muons.

par·ti·cle

(par'ti-kĕl),
1. A small piece or portion of anything.
2. An elementary particle such as a proton or electron.
[L. particula, dim. of pars, part]

par·ti·cle

(pahr'ti-kĕl)
1. A small piece or portion of anything.
2. An elementary particle such as a proton or electron.
[L. particula, dim. of pars, part]

par·ti·cle

(pahr'ti-kĕl)
1. A small piece or portion of anything.
2. An elementary particle such as a proton or electron.
[L. particula, dim. of pars, part]
References in periodicals archive ?
These parameters can be iteratively modified until a converged value of the electric field [E.sup.(n).sub.i] ([r.sub.i]) is obtained and the final dipole moment considering other particles' influence can be achieved:
The second original contribution, as described in Section 5, is the idea of using events to determine when code for updating particles and particle systems should be executed.
Table 1: Particle size measured by laser diffraction D10% ([micro]m) D50% ([micro]m) D90% ([micro]m) Batch A 1.6 5.4 19.7 Batch B 1.7 13.4 51.9 When determining particle sizes by laser diffraction, the particles are dispersed in a suitable medium (air or liquid).
En'yo and his colleagues measured the particles masses by firing protons at targets of either carbon or copper, creating showers of particles that included phi mesons.
Particle sizes from 10 to 200 mesh (2000-45 microns) come in bulk or bagged form.
The smallest particles will travel beyond the bronchi and deposit, ultimately, in the blood stream and be carried to the rest of the body.
Nevertheless, since EM and PCR cannot discriminate between infectious and noninfectious virus particles or nucleic acids, they are not satisfactory when an evaluation of the infectious capacity of viral particles is required.
(2005) provided micrographs of fluorescent polystyrene particles taken up by macrophages (Figure 3) or red blood cells (Figure 4).
When Brownlee and his colleagues looked at the gel, they saw that the particles had left a variety of tracks when they careened into the sample tray.
These streams of high-energy particles collide with atoms (smallest unit of an element) in Earth's atmosphere.
The LHC accelerator makes particles collide, but then you need machines capable of observing the collisions in order to see the particles that are produced.