A person who hunts seals. / A vessel engaged in the business of capturing seals.

(Internet slang, derogatory) To intrude on a conversation with disingenuous questions in an attempt to engage in unwanted debate as a form of harassment.

(uncommon) Alternative form of sea lion / (Internet slang, derogatory) One who engages in sealioning.

plural of sealant

Any material used to seal a surface so as to prevent passage of a fluid. / (construction) A mixture of polymers, fillers, and pigments used to fill and seal joints where moderate movement is expected.

plural of sealion

Third-person singular simple present indicative form of sealion

The polished bore of an oil well that accepts a seal assembly as part of a production packer.

That may be sealed.

plural of sealer