12-Letter Words Containing: _,A,E,L,S,T,T,T

• an athlete who competes in a pentathlon

• the line along which opposing armies face each other

• showing frivolous or superficial interest; amateurish

• fabric made to look like leather

• abstaining from alcohol

• A laminated, columnar, rock-like structure constituting a large share of all fossils from 3.5 to 0.5 billion years ago, with some still being formed at present, some or all of which result from the deposit of minerals by microorganisms such as cyanobacteria.