Used attributively to denote relation to the marine mammal "seal" (e.g., seal colony).
Definitions
sealverb
To close or fasten something so as to make it airtight, watertight, or otherwise secure against leakage or intrusion.
She sealed the envelope before dropping it in the mailbox.
To formally confirm or ratify (a document, agreement, or commitment), often by affixing a seal or other mark of authority.
The two companies sealed the deal with a signed contract.
To make something irrevocable or decide the outcome of something, ensuring a particular result.
Her late-game goal sealed the team's victory.
sealnoun
Any of various carnivorous, fin-footed marine mammals of the clade Pinnipedia, especially those of the families Phocidae and Otariidae, noted for their streamlined bodies and ability to live in cold or temperate waters.
A group of seal pups basked on the rocky shore.
A device or substance used to join two things together so as to prevent them from coming apart or to prevent anything from passing between them.
The plumber used a rubber seal to fix the leak in the pipe.
An emblem or stamp used as a mark of authenticity or as a means of securing a document.
The official document was stamped with the royal seal.
A closure that ensures the contents of a container are kept secure and uncontaminated.
The jar had a tight seal to keep the jam fresh.
sealadjective
Of, relating to, or characteristic of seals (marine mammals).
Researchers monitored seal populations along the coast.
Designed or used for closing, fastening, or making something watertight or airtight.
He applied a seal coat to the driveway to prevent water damage.