abomasumn.

1678 Philos. Trans. 1677 (Royal Soc.) 12 962 In which respect [sc. large size] it answered to the Panch in a Cow or Sheep: but, in regard of its place, rather to the Reticulus, or else to the Abomasum.

1773 J. Nourse Pemberton's Course Physiol. v. 86 In calves, the last ventricle (called Abomasum) exceeds the second, which afterwards, when the animal comes to live on grass, is distended to much the greatest magnitude of any of the ventricles.

1851 G. H. Dadd Amer. Reformed Cattle Doctor 49 A set of very minute tubes, called lacteals,..arise by open mouths from the inner surface of the abomasum and intestines.

a1933 J. A. Thomson Biol. for Everyman (1934) I. xxi. 740 A study of the minute structure of the walls has shown that the first three chambers..really belong to the oesophagus, while the abomasum or reed represents the ancestral stomach.

1984 J. Webster Calf Husbandry, Health & Welfare i. 10 When milk enters the abomasum it initially forms a clot under the action of the enzyme rennin.

2000 New Scientist 8 Jan. 10/1 Only when the mush passes into the true stomach—the abomasum—does the cow begin to digest the amino acids, converting them into milk and meat.

1910 S. Sisson Text-bk. Vet. Anat. 402 In the calf the omasal impression is small, and the abomasal one large in correspondence with the relative sizes of these two sacs.

1972 N. Z. Jrnl. Agric. Res. 15 290 The duodenal cannulae were 9 cm from the abomasum, so the liquor collected is probably more characteristic of abomasal liquor.

2005 Wildlife Soc. Bull. 33 213/2 Abomasal parasite counts suggested the deer population was at nutritional carrying capacity.