Relating to upregulation.

Any crocodilian of the superfamily Alligatoroidea, which includes a number of extinct genera as well as the family Alligatoridae (alligators and caimans).

A V-shaped pattern; used in architecture, and as an insignia of military or police rank, on the sleeve. / (heraldry) A wide inverted V placed on a shield.

plural of Schwarzschild model