Cordyceps /ËkÉrdÉsÉps/ is a genus of ascomycete fungi (sac fungi) that includes about 400 species.All Cordyceps species are endoparasitoids, parasitic mainly on insects and other arthropods (they are thus entomopathogenic fungi); a few are parasitic on other fungi.rom Wikipedia, the free encyclopedia. Cordyceps /ËkÉrdÉsÉps/ is a genus of ascomycete fungi (sac fungi) that includes about 400 species. All Cordyceps species are endoparasitoids, parasitic mainly on insects and other arthropods (they are thus entomopathogenic fungi); a few are parasitic on other fungi.
As verbs the difference between oxidize and tarnish is that oxidize is (chemistry|transitive) to combine with oxygen or otherwise make an oxide while tarnish is to oxidize or discolor due to oxidation. As a noun tarnish is oxidation or discoloration, especially of a decorative metal exposed to air.s verbs the difference between metal and tarnish is that metal is to make a road using crushed rock, stones etc while tarnish is to oxidize or discolor due to oxidation. As a adjective metal is (music) characterized by strong, fast drum-beats and distorted guitars.
Tarnish is a surface phenomenon that is self-limiting, unlike rust. Only the top few layers of the metal react, and the layer of tarnish seals and protects the underlying layers from reacting. Tarnish actually preserves the underlying metal in outdoor use, and in this form is called patina. The formation of patina is necessary in applications such as copper roofing, and outdoor copper, bronze, and brass statues and fittings. Patina is the name given to tarnish on copper based metals.