AskDefine | Define motility

Dictionary Definition

motility

Noun

1 ability to move spontaneously and independently [ant: immotility]
2 a change of position that does not entail a change of location; "the reflex motion of his eyebrows revealed his surprise"; "movement is a sign of life"; "an impatient move of his hand"; "gastrointestinal motility" [syn: motion, movement, move]

User Contributed Dictionary

English

Noun

  1. The state or degree of being motile.

Extensive Definition

Motility is a biological term which refers to the ability to move spontaneously and independently. It can apply to either single-celled or multicellular organisms.
In cellular biology or biomedical engineering, motility often refers to directed cell movement down gradients established in biopolymers. Examples are:
  • movement along a chemical gradient (see chemotaxis)
  • movement along a rigidity gradient (see durotaxis)
  • movement along a gradient of cell adhesion sites (see haptotaxis)
motility in German: Motilität
motility in Spanish: Motilidad celular
motility in Malay (macrolanguage): Motiliti
motility in Japanese: 運動性
motility in Simple English: Motile
motility in Chinese: 能動性
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