In contrast, the tumors of the hard palate have much more varied histology with non-squamous cell tumors, including minor salivary gland tumors, causing a greater portion of the tumors seen in the hard palate, as well as rare cases of melanoma, sarcoma and malignant lymphomas.
Based on ANSI X4.13, the LUHN formula (also known as the modulus 10 -- or mod 10 -- algorithm) is used to generate and/or validate and verify the accuracy of credit-card numbers. 1  Tweet.
Also found in: Dictionary, Thesaurus, Encyclopedia. lunula. a small, crescentic or moon-shaped area or structure, e.g., the white area at the base of the nail of a finger or toe, or one of the segments of the semilunar valves of the heart.