Simple categories matching rapid:

• transport,
• process,
• defence,
• change,
• dominance,
• failure,
• phenomenon,
• test,
• variation,
• assay,
• object,
• unit,
• advancement,
• movement,
• event,
• procedure,
• signal,
• divergence,
• development,
• slide,
• motion,
• landslide,
• transformation,
• adjustment,
• behaviour,

Members with property rapid:

• debris_avalanche,
• shock,
• sedimentation,
• catabolic_wind,
• earthquake,
• neurotransmitter_release,
• landslide,
• land_reclamation,
• further_clearing,
• acquisition,
• solar_energy,
• dipstick_elisa,
• dot_immunoassay,
• elisa,
• merger,
• ion_flux,
• debris_flow,
• avalanche,
• emergency,
• flood,
• microwave_communications,
• salinity,
• wind,
• escape,
• inflammation,
• wildfire,
• volcanic_eruption,
• precipitation,
• rollerblade,
• pt_condition,
• agglutination_test,
• lateral_diffusion,
• spark,
• financial_service,
• external_shock,
• pattern,
• flow_slide,
• insect_outbreak,
• train,
• tort_reform,
• discharge,
• rock_avalanche,
• current,
• process,
• circus_ride,
• modern_form,
• vasoconstriction,
• smart_product,
• operation_shock,
• oscillation,
• wave,
• chemical_purification,
• production,
• international_competition,
• high_growth,
• calcium_wave,
• agitation,
• collision,
• desertification,
• chase,
• dot,
• turbulence,
• apoptosis,
• major_development,
• development,
• technological_advance,
• short_circuit,
• liberalization,
• facilitation,
• road_work,
• glacial_flow,
• software_development,
• horse,
• fluorescence_phenomenon,
• explosion,
• ship,
• inactivation,
• intelligent_product,
• combustion,
• industrial_revolution,
• jerking,
• lightning,
• land,
• slide,
• seismic_loading,
• auger_decay,
• use,
• seizure,
• early_diastole,
• rockslide,
• hormone_release,
• internal_reorganization,
• crash,
• rain,
• war_elephant,
• reclamation,
• welfare_reform,
• crystal_growth,
• increasing_migration,
• impact,
• major_acquisition,
• cavalry,
• snowmobile,
• rotation,
• air-bag_deployment,
• sudden_commencement,
• dash,
• tank,
• communications,
• earthquake_grade,
• environmental_crisis,
• electrolysis,
• meteor,
• insulin_release,
• communication,
• complement,
• urban_growth,
• layoff,
• calcium_spark,
• sport_scene,
• gamma-ray_burst,
• saccade,
• activation,
• intelligent_control,
• increased_transposition,
• fast_start,
• platelet_activation,
• severe_storm,
• swinging,
• sport_event,
• impact_test,
• airway_collapse,
• melting,
• thermal_expansion,
• action,
• asteroid_impact,
• strain,
• demographic_change,
• punch,
• throw,
• debris_slide,
• wave_propagation,
• reform,
• tram,
• rock_slide,