[ 'θɪərəm ]
■ noun Physics & Mathematics a general proposition not self-evident but proved by a chain of reasoning.
↘a rule in algebra or other branches of mathematics expressed by symbols or formulae.
Derivatives
~atic -'matɪk adjective
Origin
C16: from Fr. théorème , or via late L. from Gk theōrēma 'speculation, proposition'.