Designating any of the four equal parts of something
Of, relating to, or being the period of geologic time from about 1.8 million years ago to the present, the more recent of the two periods of the Cenozoic Era. It is characterized by the appearance and development of humans and includes the Pleistocene and Holocene Epochs.
Find another word for 4th. In this page you can discover 2 synonyms, antonyms, idiomatic expressions, and related words for 4th, like: fourth and quaternary.