ˈāˈtü+ noun
Usage: usually capitalized A
Etymology: A (I)
: the often whitish gray or ash-gray portion of the A-horizon below the dark layer at the immediate surface
ˈāˈtü+ noun
Usage: usually capitalized A
Etymology: A (I)
: the often whitish gray or ash-gray portion of the A-horizon below the dark layer at the immediate surface
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012