| bifidus factor | An unidentified substance associated with Lactobacillus bifidus subsp. Pennsylvanicus, present in mammalian milk. (05 Mar 2000) |
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| uterus bifidus | A uterus that is more or less completely divided into two lateral horns as a result of imperfect fusion of the paramesonephric ducts; it differs from septate uterus, in which there is no external mark of separation; in uterus bicornis, the cervix may be single (uterus bicornate unicollis) or double (uterus bicornate bicollis). Synonym: bifid uterus, uterus bicornis, uterus bifidus. (05 Mar 2000) |
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| Lactobacillus bifidus | Former name for Bifidobacterium bifidum. (05 Mar 2000) |
| Lactobacillus bifidus pennsylvanicus | Former name for Bifidobacterium bifidum. (05 Mar 2000) |