Acheulean
adjective
Acheu·le·an ə-ˈshü-lē-ən 
variants or Acheulian
: of or relating to a Lower Paleolithic culture originating in Africa and typified by bifacial tools with round cutting edges
Word History
Etymology
borrowed from French acheuléen, from St. Acheul, near Amiens, France, location of the type station + -éen -ean
First Known Use
1877, in the meaning defined above
- a question mark over
- a question of
- a race against the clock
- a race against time
- a rap across the knuckles
- a rap on the knuckles
- a rap on/over/across the knuckles
- a rap over the knuckles
- a raw deal
- a red rag to a bull
- a remote chance
- a roll in the hay
- a roll of the dice
- a roof over one's head
- a rovescio
- a safe bet
- a shade
- a shadow of (a) doubt
- a shadow of a doubt
- a shadow of doubt
- a share of the pie
- a sharp tongue
- a shiver runs down someone's spine
- a shiver runs up someone's spine
- a shock to someone's system