noun
/ˈmeɪtrɪks/ , pl -trices /-trəˌsiːz/
[count] technical
something (such as a situation or a set of conditions) in which something else develops or forms
something shaped like a pattern of lines and spaces
a container that can be filled with a material (such as very hot metal) to give the material a new shape :mold
rock in which something hard (such as a diamond or a fossil) has been formed
the area on a human finger or toe from which the fingernail or toenail grows
mathematics :a set of numbers in which the numbers are listed in rows and columns and can be added or multiplied according to special rules - see also dot matrix