Modifiers matching signal:

• interfering,
• normal,
• analog,
• audible,
• measurable,
• outside,
• interactive,
• plastic,
• natural,
• driving,
• attractive,
• exogenous,
• acoustic,
• visual,
• percussive,
• typographical,
• special,
• physiological,
• diverse,
• complex,
• harmonic,
• behavioral,
• identifiable,
• useful,
• abstract,
• secondary,
• important,
• negative,
• global,
• biological,
• electrical,
• localized,
• common,
• ambient,
• intracellular,
• informative,
• distinct,
• off,
• high,
• verbal,
• dynamic,
• electromechanical,
• private,
• local,
• diagnostic,
• broadband,
• original,
• ancillary,
• stereo,
• nonverbal,
• linear,
• basic,
• pyrotechnic,
• strong,
• social,
• cultural,
• sensorial,
• heterogeneous,
• environmental,
• respiratory,
• extraneous,
• size,
• primary,
• molecular,
• simple,
• communicative,
• logical,
• abnormal,
• actual,
• out,
• biomedical,
• fast,
• alert,
• internal,
• temporal,
• endogenous,
• pitched,
• vocal,
• real,
• familiar,
• subtle,
• graphical,
• positive,
• typical,
• loud,
• periodic,
• difficult,
• cellular,
• graphic,
• neural,
• primitive,
• hemodynamic,
• rapid,
• extracellular,
• structured,
• sensory,
• pedestrian,
• unpredictable,
• intrinsic,
• perceptible,
• level,
• symbolic,
• mechanical,
• electric,
• erroneous,
• sexual,
• telegraphic,
• complicated,
• regular,
• traditional,
• stray,
• multiple,
• underlying,
• chaotic,
• clinical,
• defined,
• digital,
• electronic,
• perceivable,
• practical,
• accessible,
• insignificant,
• tonal,
• large,
• nonrandom,
• specified,
• unique,
• realistic,
• transient,
• informational,
• external,
• metabolic,
• stationary,
• discrete,
• critical,
• physical,
• mental,
• unintentional,
• male,
• noisy,
• moving,
• repetitive,
• over,
• costly,
• accidental,
• auditory,
• random,
• false,
• undesired,
• chemical,
• larger,
• linguistic,
• world,
• physiologic,
• binary,
• functional,
• remote,
• weak,
• intermediate,
• individual,
• white,
• light,
• specialized,
• unwanted,
• financial,
• incoming,
• elementary,
• medical,
• peripheral,
• visible,
• static,
• everyday,
• demographic,
• electromagnetic,
• systemic,
• directional,
• weather,
• related,
• seismic,
• relevant,
• additional,
• clear,
• rhythmic,
• technical,
• wideband,
• developmental,
• ionic,
• behavioural,
• continuous,
• detectable,
• vital,
• significant,
• seasonal,
• intermittent,
• extra,
• resonant,
• standard,
• atomic,
• meaningful,
• fixed,
• slow,
• objective,
• auxiliary,
• single,
• audiovisual,
• small,

Simple categories matching electromagnetic:

• event,
• radiation,
• operator,
• energy,
• process,
• impulse,
• component,
• irradiation,
• form,
• device,
• apparatus,
• property,
• equipment,
• instrument,
• actuator,
• sensor,
• interference,
• effect,
• terms,
• characteristic,
• appliance,
• phenomenon,
• structure,
• machine,
• band,
• system,
• devices,
• signal,
• force,
• quantity,
• circuit,
• means,
• field,
• wave,