Topline

The dog's outline from just behind the withers to the tail set.
Found on http://www.akc.org/about/glossary.cfm

Topline

The dog's outline from just behind the withers to the tail set.
Found on http://www.apluspetgoods.com/petsupplies/dog-glossary.php

topline

the outline of a horse from the top of his head to the top of his tail.
Found on http://www.discoverhorses.com/resources/glossary-of-horse-terminology-horse

Topline

The proportion and curvature of the outline of a horse's neck, back, and croup; a line from poll to tail-head
Found on http://www.gaitedhorses.net/Articles/HorseGlossary.html
No exact match found