A brief notation used by zoologists to denote the number and kind of teeth of a mammal.

(mathematics) Any of various formulas that relate the coefficients of a polynomial to a sum or product of its roots.

(mathematics) An infinite product of nested radicals representing the constant pi: specifically, 2/𝜋=(√2)/2·√/2·√/2⋯

(logic) A formula which does not have smaller subformulas.

plural of atomic formula

plural of chemical formula

plural of closed formula

plural of formula unit

plural of Kekulé formula

plural of skeletal formula