(Science: chemical) A sulphide of arsenic and silver of a beautiful cochineal–red colour, occurring in rhombohedral crystals, and also massive; ruby silver.
Origin: From the French chemist, J. L. Proust.
You will also like...
This tutorial elaborates on the physical development of humans, particularly from puberty to adulthood. Read this tutori..
While learning and intelligence are associated with the functions of a conscious mind, sleep and dreams are activities o..
Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..
The sequence of amino acids determines the type of protein. Protein is synthesized according to the sequence of nucleoti..
This tutorial elaborates on how the nervous system works, particularly at the tissue level of the brain. There are three..