Linguistics Of or being a root: a radical form. 6. Botany. a. Of, relating to, or arising from a root: radical hairs. b. Arising from the base of a stem or from a below-ground stem or rhizome: radical leaves.
The crater has been named the Barringer Crater in honor of Daniel Barringer, who was first to suggest that it was produced by meteorite impact. It is also referred to simply as Meteor Crater. The crater is located approximately 69 km east of Flagstaff, near Winslow in the northern Arizona desert of the United States.
The mountains and the flat plains on the moon do not surprise us, for the earth has many such features. The lunar craters, however, tease and puzzle us. Most of them are round pits ringed with steep walls, somewhat like Meteor Crater in Arizona. For a long time many experts thought that the lunar craters also were caused by falling meteors.