1. 
   transisthmian
   Across any isthmus; specifically, across the isthmus of the fornicate gyrus, denoting the gyrus transitivus. ... (05 Mar 2000) ...
   Found op http://www.mondofacto.com/facts/dictionary?transisthmian
   
   
2. 
   Transisthmian
   • (a.) Extending across an isthmus, as at Suez or Panama.
   Found op http://thinkexist.com/dictionary/meaning/transisthmian/
   
   
3. 
   transisthmian
   transisthmian Across any isthmus; specifically, across the isthmus of the fornicate gyrus (horseshoe-shaped cortical convolution bordering the hilus of the cerebral hemisphere), denoting the gyrus transitivus (prominent rounded elevations that form the cerebral hemispheres).
   Found op http://www.wordinfo.info/words/index/info/view_unit/1095/
   
   
4. 
   transisthmian
   Type: Term Pronunciation: trans-is′mē-ăn Definitions: 1. Across any isthmus; specifically, across the isthmus of the fornicate gyrus, denoting the gyrus transitivus.
   Found op http://www.medilexicon.com/medicaldictionary.php?t=93293
   
   

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