the elasticlike force existing in the surface of a body, especially a liquid, tending to minimize the area of the surface, caused by asymmetries in the intermolecular forces between surface molecules.
a property of liquids caused by intermolecular forces near the surface leading to the apparent presence of a surface film and to capillarity, etc
a measure of this property expressed as the force acting normal to one side of a line of unit length on the surface: measured in newtons per metre T, γ, σ
surface tension n.
A property of liquids arising from unbalanced molecular cohesive forces at or near the surface, as a result of which the surface tends to contract and exhibit properties resembling those of a stretched elastic membrane.
A measure of this property.
A property of liquids such that their surfaces behave like a thin, elastic film. Surface tension is an effect of intermolecular attraction, in which molecules at or near the surface undergo a net attraction to the rest of the fluid, while molecules not near the surface are attracted to other molecules equally in all directions and undergo no net attraction. Because of surface tension, the surface of a liquid can support light objects (such as water beetles on the surface of a pond). Surface tension is responsible for the spherical shape of drops of liquid; spheres minimize the surface area of the drop and thus minimize surface tension. See also capillary action, meniscus.
surface tension definition
The force exerted along the surface of a fluid that causes it to “bead up” and form into drops. Water has high surface tension and beads up easily; alcohol has low surface tension and does not often show droplets.
- Surface-tension theory of narcosis
surface-tension theory of narcosis n. The theory that substances that lower the surface tension of water pass more readily into a cell and cause narcosis by decreasing metabolism.
noun 1. a person who believes in or advocates the supremacy of a particular group, especially a racial group: a white supremacist. noun 1. a person who promotes or advocates the supremacy of any particular group adjective 2. characterized by belief in the supremacy of any particular group noun See supremist
- Supravital stain
supravital stain n. A procedure in which living tissue is removed from the body and cells are placed in a nontoxic dye solution so that their vital processes may be studied.
adjective, Histology. 1. pertaining to or involving a staining method for a preparation of living cells. supravital su·pra·vi·tal (sōō’prə-vīt’l) adj. Relating to or capable of staining living cells after their removal from a living or recently dead organism.