| Budge's centre | The preganglionic motor neurons in the first thoracic segment of the spinal cord which give rise to the sympathetic innervation of the dilator muscle of the eye's pupil. Synonym: Budge's centre. (05 Mar 2000) |
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| Budge, Julius | <person> German physiologist, 1811-1888. See: Budge's centre. (05 Mar 2000) |
| budgerigar | An Australian parakeet (Melopsillacus undulatus) commonly kept as a small pet bird. (05 Mar 2000) |
| budgets | Detailed financial plans for carrying out specific activities for a certain period of time. They include proposed income and expenditures. (12 Dec 1998) |
| budgie | Abbreviated form of budgerigar. (05 Mar 2000) |
| Budin's obstetrical joint | Cartilaginous union between the squamous and lateral parts of the occipital bone in the newborn. Synonym: synchondrosis intraoccipitalis posterior, Budin's obstetrical joint, posterior intraoccipital joint. (05 Mar 2000) |
| Budin, Pierre | <person> French gynecologist, 1846-1907. See: Budin's obstetrical joint. (05 Mar 2000) |
| BUdR | <chemical, molecular biology> Analogue of thymidine that induces point mutations because of its tendency to tautomerisation: in the enol form it pairs with G instead of A. It is used as a mutagen and also as a marker for DNA synthesis (the incorporation of BUdR can be recognised because the staining pattern differs: an even more sensitive method uses a monoclonal antibody staining procedure.) (12 May 1997) |
| lung bud | The endodermal lung primordium which will give rise to the epithelial lining of the respiratory tract. Synonym: lung bud. (05 Mar 2000) |
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