Dictionary 1. (a.) Relating to, or causing, catalysis.2. (n.) An agent employed in catalysis, as platinum black, aluminium chloride, etc. Thesaurus accessory adjuvant advantageous agential agentival agentive ancillary assistant assisting auxiliary beneficial catalytic concert conducive contributory dramatico-musical employable facilitating favoring forwarding fostering handy helpful helping important intermediary jazz jazzy mediating mediatorial ministerial ministering ministrant nurtural nutricial of service orchestral promoting rock serviceable serving significant subservient subsidiary supporting supportive swing symphonic syncopated useful utilitarian valuable |