1. 
   Pyrosome
   Each zooid is only a few millimeters in size, but is embedded in a common gelatinous tunic that joins all of the individuals. Each zooid opens both to the inside and outside of the "tube", drawing in ocean water from the outside to its internal filtering mesh called the branchial basket, extracting...
   Found op http://en.wikipedia.org/wiki/Pyrosome
   
   
2. 
   Pyrosome
   Pyr'o·some noun [ Pyro- + - some body.] (Zoology) Any compound ascidian of the genus Pyrosoma . The pyrosomes form large hollow cylinders, sometimes two or three feet long, which swim at the surface of the sea and are very ph...
   Found op http://www.encyclo.co.uk/webster/P/205
   
   
3. 
   pyrosome
   <zoology> Any compound ascidian of the genus Pyrosoma. The pyrosomes form large hollow cylinders, sometimes two or three feet long, which swim at the surface of the sea and are very phosphorescent. ... Origin: Pyro- + -some body. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?pyrosome
   
   
4. 
   Pyrosome
   • (n.) Any compound ascidian of the genus Pyrosoma. The pyrosomes form large hollow cylinders, sometimes two or three feet long, which swim at the surface of the sea and are very phosphorescent.
   Found op http://thinkexist.com/dictionary/meaning/pyrosome/
   
   

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