tearstain

tear·stain

 (tîr′stān′)
n.
A track or mark left by tears.

tear′-stained′ adj.

tearstain

(ˈtɪərˌsteɪn)
n
(Biology) a stain or streak left by tears, esp on a cat or dog
References in periodicals archive ?
According to Assisi Animal Health, many dog owners struggle to manage the reddish-brown tearstains on light-colored dogs.
Owners of white dogs tend to be more concerned about tearstains because they are more visible on light-colored fur.