hygroma means a discrete, fluid-filled sac that can form on the joints of dogs or other animals in response to repeated pressure.
Etymology
Analysable as hygro- + -oma.
noun
- a discrete, fluid-filled sac that can form on the joints of dogs or other animals in response to repeated pressure.“When the hemorrhage is limited the symptoms may not become noticeable; if it is near the surface of the body a round or diffuse swelling or tumor may form, constituting a hygroma.”