| Birbeck | Michael S., contemporary British cancer researcher. See: Birbeck's granule. (05 Mar 2000) |
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| Birbeck's granule | A small tennis racket-shaped membrane-bound granule with characteristic cross-striated internal ultrastructure; first reported in Langerhans' cells of the epidermis. Synonym: Birbeck's granule. (05 Mar 2000) |