IPA: /ˈruːmɪnəl/
KK: /ˈrumɪnəl/
Relating to the rumen, which is a part of the stomach in some animals, especially ruminants like cows and sheep.
The ruminal bacteria help in breaking down the food that the cow eats.
Ruminal → It is formed from "rumen" (from Latin "rumen", meaning the first stomach of a ruminant) and "-al" (meaning pertaining to). The word "ruminal" refers to something that is related to the rumen, the part of the stomach in certain animals that chew cud.
Think of the 'rumen' as the special stomach for certain animals, and remember that 'ruminal' means something related to that stomach.