(sciences) A period of long-term reduction in the temperature of Earth's surface and atmosphere, resulting in the presence of major polar ice sheets that reach the ocean and calve icebergs.

A demographic grouping based on age.

(law) The age at which the rights and privileges of an adult are legally granted or recognized; i.e.; the age where a person ceases to be a minor legally and becomes a legal adult.

very old; having existed for a long time; ancient or well-established

(archaeology, paleontology) A broad prehistoric period during which humans widely used stone for toolmaking. / (figuratively, informal) Any extremely primitive or undeveloped era.

Of or relating to a broad movement in Western culture, covering a wide variety of alternative spiritual and philosophical ideas, often spirituality, mysticism, holism, and environmentalism, and partially based on eastern religions such as Buddhism and Hinduism, that developed towards the end of the 20th century.

A modern spiritual and religious movement. / (music) Ellipsis of New Age music..

A restriction placed on an activity based on the age of the participants; either lower or higher limit.

(often capitalized) A modern spiritual and religious movement, covering a wide variety of alternative spiritual and philosophical ideas, that developed towards the end of the 20th century.

(often capitalized) Of or relating to the New Age movement. / Of or relating to New Age music.