plural of geometric tortoise

Any of the species Psammobates geometricus of South African tortoises with radial black and yellow markings. / Any of the species of genus Psammobates

(mathematics) A generalization of certain properties of multidimensional spaces.

(mathematics) A mean of two numbers which is the common limit of a pair of sequences, whose terms are defined by taking the arithmetic and geometric means of the previous pair of terms.

plural of arithmetic-geometric mean