osteocolla
/ˌɒstɪəʊˈkɒlə/Geology. Now rare
noun
A calcareous deposit forming an incrustation on the roots and stems of plants in sandy ground, especially in some parts of Germany.
- Formerly also called glue-bone stone, from its supposed ability to help the knitting of broken bones..
Origin
Mid 17th century; earliest use found in Nicholas Culpeper (1616–1654), physician and astrologer. From post-classical Latin osteocolla from osteo- + ancient Greek κόλλα glue.