Dictionary.net

The hypothetical homogeneous cosmic material of the original universe, supposed to have been differentiated into what are recognized as distinct chemical elements.

Original or primitive matter; the hypothetical substance from which all matter is ultimately derived, archyle, psychoplasm. Nicholson assumes that all the elements are built up from four protyles-coronium, hydrogen, nebulium, and protofluorine.

(chem.). Supposed original undifferentiated matter of which chemical elements may be composed.