pozzolanic

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective pozzolanic is

having the characteristics of pozzolana, a type of volcanic ash used for mortar or for cement which sets under water.

Pozzolan is a derived term of pozzolanic.

As an adjective pozzolanic

is having the characteristics of pozzolana, a type of volcanic ash used for mortar or for cement which sets under water.

As a noun pozzolan is

any material which, when combined with calcium hydroxide, exhibits cementitious properties; often used as an extender with Portland cements.