noun, plural pul·vi·ni [puhl-vahy-nahy] /pʌlˈvaɪ naɪ/.
Origin of pulvinus
Examples from the Web for pulvinus
Historical Examples of pulvinus
Tropic response of pulvinus of Desmodium gyrans: Experiment 131.Life Movements in Plants, Volume II, 1919
Sir Jagadis Chunder Bose
The moto-excitability of the pulvinus of Mimosa is greatly modified under the influence of temperature.
In Mimosa excitation is manifested by the contraction of the pulvinus and the consequent movement of the leaf.
In Mimosa, the responsive movement is brought about by a sudden diminution of turgor in the pulvinus.
This is accentuated by the expansion of the upper half of the pulvinus which is normally in a state of compression.