merism

English

Examples (polar extremes)
heaven and earth (the universe) high and low (everywhere)

From Ancient Greek μερισμός (merismós).

Examples (list of parts)
lock, stock, and barrel (the whole gun) signed, sealed, and delivered (the whole process of communicating)

merism (countable and uncountable, plural merisms)

(literature, rhetoric) A reference to something by its polar extremes, as in "we searched high and low".
(literature, rhetoric) A reference to something by a list of its parts.

enumeration