تلفظ بین المللی : /sɛlˈiːniəm/ تلفظ : [sEl'i:ni@m]
English
An alkaloid extracted from the root of the pellitory of Spain (Anacyclus pyrethrum).
A nonmetallic element of the sulphur group, and analogous
to sulphur in its compounds. It is found in small quantities with
sulphur and some sulphur ores, and obtained in the free state as a dark
reddish powder or crystalline mass, or as a dark metallic-looking
substance. It exhibits under the ac...
