Definition of ETHNOMEDICINE. : the comparative study of how different cultures view disease and how they treat or prevent it; also: the medical beliefs and practices of indigenous cultures.
Ten materials familiar to various prehistoric cultures are now known to be chemical elements: Carbon, copper, gold, iron, lead, mercury, silver, sulfur, tin, and zinc. Three additional materials now accepted as elements, arsenic, antimony, and bismuth, were recognized as distinct substances prior to 1500 AD.
There are 118 different types of atoms because there are 118 elements on the periodic table of elements and each element is made of one type of atom like hydrogen is made of o â¦ nly hydrogen atoms but it has 1 atom in it and irin is made of 26 atoms tha are all iron atoms.