Dictionary.com
Thesaurus.com

tubal

American  
[too-buhl, tyoo-] / ˈtu bəl, ˈtyu- /

adjective

Anatomy.
  1. pertaining to a tube, as a Fallopian tube.


tubal British  
/ ˈtjuːbəl /

adjective

  1. of or relating to a tube

  2. of, relating to, or developing in a Fallopian tube

    a tubal pregnancy

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of tubal

First recorded in 1725–35; tube + -al 1