plural of activity stream

(Internet) A list of recent activities performed by an individual, typically on a particular website.

(ornithology) Avian behaviour that occurs at night or in the twilight.

A book for children with interactive content such as games, puzzles, and pictures to be coloured in.

plural of activity book

A line of eclectic social science theories and research with its roots in a Soviet theory pioneered by Sergei Rubinstein in the 1930s, seeking to understand human activities as systemic and socially situated phenomena and to go beyond paradigms of reflexology and classical conditioning.

an activity started by the citizens themselves; social movement

plural of activity tracker

A wearable electronic device, or a software application, that monitors and tracks fitness-related metrics such as distance walked, calorie consumption, or heartbeat.

(physics) The differential Raman scattering of left and right circularly polarized light by chiral molecules.