Search and compare thousands of words and phrases in British Sign Language (BSL). The largest collection online.
How to sign: a process existing in or produced by nature (rather than by the intent of human beings)
"the action of natural forces"; "volcanic activity";
Within this category: radiation, absorption, acidification, adiabatic process, aeration, antiredeposition, capture, capture, centrifugation, chemical process, chromatography, concretion, condensation, convection, curdling, decay, demagnetization, desorption, diffusion, dissolution, distillation, drift, effervescence, electrophoresis, establishment, extinction, extraction, feedback, filtration, flocculation, flow, formation, fossilization, geological process, hardening, ignition, inactivation, induction, ion exchange, ionization, leach, magnetization, materialization, nuclear reaction, opacification, oscillation, oxygenation, pair production, phase change, precession of the equinoxes, release, saltation, scattering, sericulture, sink, soak, softening, sorption, source, stiffening, stimulation, succession, survival, synergy, temperature change, transduction, transpiration, vitrification