1) Organic phenomenon 2) Streaming 1) Streaming 
circulation
• (n.) The circulation or movement of protoplasmic granules within a living vegetable cell.
Cyclical streaming of the cytoplasm of plant cells, conspicuous in giant internodal cells of algae such as Chara, in pollen tubes and in stamen hairs of Tradescantia. Term also used to denote cyclical movement of food vacuoles from mouth to cytoproct in ciliate protozoa. ... (18 Nov 1997) ... 
(si-klo´sis) movement of the cytoplasm within a cell, without external deformation of the cell wall.
Cyclical streaming of the cytoplasm of plant cells, conspicuous in giant internodal cells of algae such as Chara , in pollen tubes and in stamen hairs of Tradescantia . Term also used to denote cyclical movement of food vacuoles from mouth to cytoproct in ciliate protozoa.
Cy·clo'sis noun [ New Latin , from Greek 
Type: Term Pronunciation: sī-klō′sis Definitions: 1. The movement of the protoplasm and contained plastids within the protozoan cell.
[n] - the circulation of cytoplasm within a cell
streaming noun the circulation of cytoplasm within a cell
the movement of protoplasm within a cell.