accelerator particle accelerator
atom smasher | a scientific instrument that increases the kinetic energy of charged particles |
fiberboard
fibreboard
particle board | wallboard composed of wood chips or shavings bonded together with resin and compressed into rigid sheets |
| particle detector | a chamber in which particles can be made visible |
| focus | maximum clarity or distinctness of an image rendered by an optical system, in focus, out of focus |
| focus | maximum clarity or distinctness of an idea, the controversy brought clearly into focus an important difference of opinion |
duality
wave-particle duality | (physics) the property of matter and electromagnetic radiation that is characterized by the fact that some properties can be explained best by wave theory and others by particle theory |
focus
focusing
focussing
focal point
direction centering | the concentration of attention or energy on something, the focus of activity shifted to molecular biology, he had no direction in his life |
particle physics
high-energy physics
high energy physics | the branch of physics that studies subatomic particles and their interactions |
| particle | a function word that can be used in English to form phrasal verbs |
| focus | a fixed reference point on the concave side of a conic section |
| alpha particle | a positively charged particle that is the nucleus of the helium atom, emitted from natural or radioactive isotopes |
antitauon
tau-plus particle | an antilepton of very great mass |
baryon
heavy particle | any of the elementary particles having a mass equal to or greater than that of a proton and that participate in strong interactions, a hadron with a baryon number of |
| beta particle | a high-speed electron or positron emitted in the decay of a radioactive isotope |
elementary particle
fundamental particle | (physics) a particle that is less complex than an atom, regarded as constituents of all matter |
J particle
psi particle | a neutral meson with a large mass |
kaon
kappa-meson
k-meson
K particle | an unstable meson produced as the result of a high-energy particle collision |
lambda particle
lambda hyperon | an electrically neutral baryon with isotopic spin |
particle
subatomic particle | a body having finite mass and internal structure but negligible dimensions |
| strange particle | an elementary particle with non-zero strangeness |
tauon
tau-minus particle | a lepton of very great mass |
weakly interacting massive particle
WIMP | a hypothetical subatomic particle of large mass that interacts weakly with ordinary matter through gravitation, postulated as a constituent of the dark matter of the universe |
focus
focal point | a point of convergence of light (or other radiation) or a point from which it diverges |
| particle beam | a collimated flow of particles (atoms or electrons or molecules) |
focus
focal point
nidus | a central point or locus of an infection in an organism, the focus of infection |
| stress focus | special emphasis attached to something, the stress was more on accuracy than on speed |
| small-particle pollution | air pollution caused by fine particles of soot (as from power plants or diesel engines) |
atom molecule particle corpuscle
mote
speck | (nontechnical usage) a tiny piece of anything |
dispersed phase
dispersed particles | (of colloids) a substance in the colloidal state |
| identification particle | a tiny particle of material that can be added to a product to indicate the source of manufacture |
| focus focalize focalise sharpen | put (an image) into focus, Please focus the image, we cannot enjoy the movie |
focus
focalize
focalise | become focussed or come into focus, The light focused |
concentrate
focus
center
centre
pore
rivet | direct one's attention on something, Please focus on your studies and not on your hobbies |
concenter
concentre
focalize
focalise
focus | bring into focus or alignment, to converge or cause to converge, of ideas or emotions |
| focus | cause to converge on or toward a central point, Focus the light on this image |
focus on
center on
revolve around
revolve about
concentrate on
center | center upon, Her entire attention centered on her children, Our day revolved around our work |