Modifiers matching factor:

• external,
• extraneous,
• dynamic,
• environmental,
• demographic,
• legal,
• personal,
• outside,
• cultural,
• subjective,
• biological,
• vital,
• logical,
• structural,
• physical,
• molecular,
• medical,
• glandular,
• pathological,
• cellular,
• hemostatic,
• internal,
• exogenous,
• seasonal,
• physiological,
• organizational,
• isolated,
• genetic,
• static,
• organisational,
• intracellular,
• virulent,
• uncontrollable,
• nonliving,
• behavioural,
• special,
• temporary,
• individual,
• dimensional,
• local,
• climatic,
• systemic,
• geometric,
• intrinsic,
• critical,
• spatial,
• additional,
• level,
• historical,
• regulatory,
• discrete,
• diverse,
• positive,
• variable,
• cognitive,
• interfering,
• secondary,
• technical,
• underlying,
• relevant,
• traditional,
• mental,
• economic,
• complex,
• geometrical,
• important,
• significant,
• negative,
• ecological,
• key,
• psychological,
• biologic,
• harmful,
• primary,
• social,
• protective,
• active,
• major,
• biochemical,
• chemical,
• natural,
• clinical,
• endogenous,
• defensive,
• dietary,
• mechanical,
• multiple,
• common,
• contextual,

Simple categories matching endogenous:

• chromophore,
• compound,
• vasopressor,
• substance,
• solute,
• volatile,
• contaminant,
• phosphatase,
• agent,
• control,
• substrate,
• steroid,
• fluid,
• hormone,
• corticosteroid,
• catecholamine,
• cation,
• gene,
• metal,
• system,
• proteinase,
• ligand,
• macromolecule,
• protease,
• ion,
• estrogen,
• monoamine,
• molecule,
• chemical,
• glucocorticoid,
• process,
• neurotransmitter,
• polysaccharide,
• protein,
• sterol,
• nucleoside,
• cause,
• material,
• amine,
• nucleotide,
• diamine,
• enzyme,
• opsonin,
• lipid,
• soporific,
• carbohydrate,
• antigen,
• acid,
• damage,
• peptide,
• metabolite,
• component,
• sugar,
• lipoprotein,
• acceptor,
• vasoconstrictor,
• constituent,
• virus,
• cofactor,
• variable,
• androgen,
• pathogen,
• signal,
• corticoid,
• change,
• receptor,
• activator,
• pigment,
• reactant,
• buffer,
• factor,