particle
small localized object in physical sciences
relativistic particle
elementary particle which moves close to the speed of light
bort
variation of diamond (powder end particles), applied in abrasives, polishing agents, lubricants and on drilling & cutting tools/machinery
nucleus
concept in physics
free particle
particle that, in some sense, is not bound by an external force, or equivalently not in a region where its potential energy varies
dressed particle
particle together with excitations from other fields
SIMP
hypothetical particles that interact strongly with ordinary matter, but could form the inferred dark matter despite this
massive particle
particle having real positive rest mass
fluid parcel
very small amount of fluid, identifiable throughout its dynamic history while moving with the fluid flow
virus-like particle
virion that lacks nucleic acid
free streaming
particles propagating through a medium without scattering
quantum
minimum positive amount of any physical property involved in an interaction
antiparticle
concept that pairs of particles exist that have equal mass, but opposite sign for properties such as charge, lepton and baryon number
virtual particle
transient fluctuations of physical fields with existence limited and required by the uncertainty-principle
neutral particle
particle with no electric charge
snow grains
very small particles of ice, the solid equivalent of drizzle
point particle
particle with no physical extent, either an idealization or a feature of elementary particles
central atom
central atom in a coordination complex, around which ligands are bound
Oh-My-God particle
unexpectedly ultra-high-energy cosmic ray
cosmic dust
dust floating in space
boiling chip
tiny uneven-shaped particles added to liquids to avoid superheating by providing nucleation sites; often made of porous material (e.g. alumina, silicon carbide, calcium carbonate, calcium sulfate, porcelain or carbon) with nonreactive PTFE coating
Bare particle
excitation of a quantum field
ballas
shards of non-gem-grade/quality, spherical diamonds with no crystal form
Amaterasu particle
cosmic particle