معنی کلمه : catechism
English
A form of instruction by means of questions and answers.
A book containing a summary of principles, especially of religious doctrine, reduced to the form of questions and answers.
Expressed by the cube root; -- said especially of ratios. Subtriplicate ratio, the ratio of the cube root; thus, the subtriplicate ratio of a to b is cube roota to cube rootb, or cube roota/b.