Look up: microtubule

1. microtubule
   [n] - a microscopically small tubule
   Found on http://www.webdictionary.co.uk/definitio
   
   
2. microtubule
   Cytoplasmic tubule, 25nm outside diameter with a 5nm thick wall. Made of tubulin heterodimers packed in a three-start helix (or of 13 protofilaments looked at another way), and associated with various other proteins (MAPs, dynein, kinesin). Microtubules of the ciliary axoneme are more permanent than cytoplasmic and spindle microtubules.
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
3. microtubule
   <cell biology> Cytoplasmic tubule, 25nm outside diameter with a 5nm thick wall. Made of tubulin heterodimers packed in a three start helix (or of 13 protofilaments looked at another way) and associated with various other proteins (MAPs, dynein, kinesin). Microtubules of the ciliary axoneme are...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
4. microtubule
   noun a microscopically small tubule
   Found on http://wordnetweb.princeton.edu/perl/web
   
   
5. microtubule
   (mi″kro-too´būl) any of the slender, tubular structures, composed chiefly of tubulin, found in the cytoplasmic ground substance of nearly all cells; they are involved in maintenance of cell shape and in the movements of organelles and inclusions, and form the spindle fibers of mitosis. ...
   Found on http://www.encyclo.co.uk/local/21001
   
   
6. microtubule
   tubular structure of indefinite length, constructed from globular proteins called tubulins, which are found only in eukaryotic cells. Microtubules ... [8 related articles]
   Found on http://www.britannica.com/eb/a-z/m/86
   
   
7. microtubule
   Type: Term Pronunciation: mī′krō-tū′byūl Definitions: 1. A hollow, cylindric cytoplasmic element, 25 nm in diameter and of variable length, that occurs widely in the cytoskeleton, cilia, and flagella of cells; microtubules play a role in the maintenance of cell shape ...
   Found on http://www.medilexicon.com/medicaldictio
   
   
8. Microtubule
   `Microtubules` are a component of the cytoskeleton. These rope-like polymers of tubulin can grow as long as 25 micrometers and are highly dynamic. The inside of the microtubule, called the lumen, is 25 nm in diameter. Microtubules are important for maintaining cell structure, providing platforms for...
   Found on http://en.wikipedia.org/wiki/Microtubule