aeneolithic

As an adjective aeneolithic

is describing that part of the neolithic period during which copper implements were in use alongside those of flint.

As a noun aneolithic is

the eneolithic, chalcolithic or copper age.

As adjectives the difference between aeneolithic and chalcolithic

is that aeneolithic is (archaeology) describing that part of the neolithic period during which copper implements were in use alongside those of flint while chalcolithic is aeneolithic.

As a noun flint

is a hard, fine-grained quartz that fractures conchoidally and generates sparks when struck.

As a verb flint

is to furnish or decorate an object with flint.

As a proper noun Flint

is a city in Michigan.

As an adjective aeneolithic is

describing that part of the neolithic period during which copper implements were in use alongside those of flint.

As adjectives the difference between copper and aeneolithic

is that copper is made of copper while aeneolithic is (archaeology) describing that part of the neolithic period during which copper implements were in use alongside those of flint.

As a noun copper

is (lb) a reddish-brown, malleable, ductile metallic element with high electrical and thermal conductivity, symbol cu, and atomic number 29 or copper can be (slang|law enforcement) a police officer.

As a verb copper

is to sheathe or coat with copper.

As adjectives the difference between neolithic and aeneolithic

is that neolithic is of or relating to the New Stone Age while aeneolithic is describing that part of the neolithic period during which copper implements were in use alongside those of flint.

As a proper noun Neolithic

is the New Stone Age, from circa 8500 to 4500 BCE.