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Adhesion. Definition. noun. (physics, chemistry) The force of attraction between unlike molecules, or the attraction between the surfaces of contacting bodies.(cell biology) The binding of a cell to another cell, or a cell to a surface, via specific cell adhesion molecules.upplement. Adhesion may refer to the joining of two different substances due to attractive forces that hold them. For instance, cohesion causes water to form drops and adhesion keeps the water drops on the surfaces of leaves and flowers in place.
Current understanding of the mechanisms of bacterial adhesion and development. Biofilm growth is governed by a number of physical, chemical and biological processes. Attachment of a cell to a substrate is termed adhesion, and cell-to-cell attachment is termed cohesion.t is believed that the effect was due to a decrease in the bacterial surface polymer at lower temperatures as well as effects such as reduced surface area. However, Herald and Zottola [65] observed that the presence of bacterial surface appendages was dependent on temperature.