-er]
| a stringy, mucilaginous substance consisting of various bacteria, esp. Mycoderma aceti, that forms on the surface of a fermenting liquid and causes fermentation when added to other liquids, as in changing wine or cider to vinegar. |
mother
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mother moth·er (mŭ&phonth;'ər)
n.
A woman who conceives, gives birth to, or raises and nurtures a child.
A female parent of an animal.
A structure, such as a mother cell, from which other similar bodies are formed.