Gamblian
/ˈɡamblɪən/Geology. Now rare
noun
An East African pluvial period of the Pleistocene, preceding the Makalian.
adjective
Designating this period; of or relating to this period.
Origin
1920s; earliest use found in Louis Leakey (1903–1972), archaeologist and palaeoanthropologist. From Gamble + -ian.