the protoplasmic material surrounding the centrosome, formerly thought to be involved in the formation of the asters and spindle during mitosis
any reptile of the subclass Archosauria, including the dinosaurs, pterosaurs, and crocodilians and characterized by two pairs of openings in the temporal region of the skull. archosaur (är’kə-sôr’) Any of various mostly reptilian animals of the subclass Archosauria. Archosaurs are diapsids that began to evolve in the late Permian Period, and are characterized by skulls […]
a male given name, form of . a combining form meaning “rule,” “government,” forming abstract nouns usually corresponding to personal nouns ending in -arch: monarchy; oligarchy. Contemporary Examples His guys are Archy, an African-American bassist who returned from the Gulf, who meets Nat, a white aficionado of vinyl. ‘Telegraph Avenue’: Michael Chabon on His Obsessive […]
resembling an arch in appearance. arciform ar·ci·form (är’sə-fôrm’) adj. Arcuate.