A surname.

(computer science, linguistics) A containment hierarchy of classes of formal grammars. From least to most specialized, the classes are: recursively enumerable, context-sensitive, context-free, and regular.

plural of Chomsky hierarchy

A surname from West Frisian.

plural of Hiemstra

plural of Hieber

A surname.

Of or pertaining to hierarchy.

An advocate for a hierarchy.

plural of hierarchist