signet-ring cell carcinoma n.
A poorly differentiated adenocarcinoma that occurs most frequently in the stomach and occasionally in the large bowel.
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| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question. |