from The Century Dictionary.
- noun A commercial name for tricalcium phosphate, Ca3(PO4)2; the phosphate which forms bone-tissue, and which makes up the larger part of the phosphatic rock of South Carolina and other localities.
Sorry, no etymologies found.
In the commonest form, popularly called bone-phosphate, which is the form in which lime and phosphoric acid are combined in bones, guano, and the ordinary mineral phosphates, the lime and phosphoric acid are combined in the form of what is known as tribasic phosphate of lime, or tricalcic phosphate -- that is to say, for every equivalent of phosphoric acid there are three equivalents of lime.
A prejudice exists against it on account of its source, and it has been a common practice to label the bags "bone-phosphate," or "dissolved bone," or such other designation as would imply an organic source, but the acid phosphate is made out of rock-phosphate, regardless of the name given.