Dictionary

whale's tail en · NOUN

Pronunciation

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Meanings

1. (slang) The distal bifurcation of the left anterior descending coronary artery.
   • […] anterior descending coronary artery (i.e. the "mustache," "pitchfork," or "whale's tail"; Fig. 18.6, top); in the circumflex system, the distal bifurcation of the segment with the longest total distance that includes the[…] 2000, Donald S. Baim, William Grossman, Grossman's Cardiac Catheterization, Angiography, and Intervention, Lippincott Raven:
   • It then bifurcates distally and tapers out as a "whale's tail" at the cardiac apex, although sometimes it wraps around the apex to supply part of the inferior wall. 2007, Eric J. Topol, Robert M. Califf, Textbook of Cardiovascular Medicine, Lippincott Williams & Wilkins, →ISBN, page 1227:
2. Used other than figuratively or idiomatically: The tail of a whale.
3. (slang) An alternative expression of the whale tail phenomenon where a thong peeks out above the waistband.
   • Another distraction occurs when pants ride low in the back and expose thong underwear, a phenomenon students have dubbed whales' tails... 2004, Tom Quinn, “Updated Dress Code Addresses New Styles”, in The Oregonian:

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whale tail