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n. A translucent white substance, composed mainly of silica and water with traces of lime and potash, obtained from the nodal joints of some species of bamboo and used in traditional Asian medicine.

n. A concretion in the joints of the bamboo, which consists largely or chiefly of pure silica. It is highly valued in the East Indies as a medicine for the cure of bilious vomitings, bloody flux, piles, and various other diseases.

n. A white opaque or translucent variety of opal which breaks into irregular pieces like dry starch, found in the joints of the bamboo in the East and Brazil, and believed to be caused by disease or injury to the plant.

"Sir David Brewster long ago pointed out the remarkable physical characters presented by the curious product of the vegetable world known as "tabasheer," though so far as I can find out it has not in recent years received that attention from physicists which the experiments and observations of the great Scotch philosopher show it to be worthy of."

revivification    spectroscope    airlessness    fossiliferous    dessication