1. Of or relating to a catechism summarizing the principles of Christianity

See also: catechism

• theory of probability
• theory of punctuated equilibrium
• theory of relativity
• theory-based
• theosophical
• theosophism
• theosophist
• theosophy
• theoterrorism
• therapeutic
• therapeutic abortion
• therapeutic cloning
• therapeutic rehabilitation
• therapeutical
• therapeutically
• therapeutics
• Theraphosidae
• therapist
• therapsid
• Therapsida
• therapy
• Theravada
• Theravada Buddhism
• there
• there's