- a small amount of water held by a trap to exclude foul gases from a sewer or the like.
- the depth of the part of the water that actually excludes the gases.
verb (used with object)
- to close hermetically: to seal off a jar.
- to block (an entrance, area, etc.) completely so as to prevent escape or entrance: The police sealed off the area after the bomb threat was received.
Origin of seal1
Related formsseal·a·ble, adjectivere·seal·a·ble, adjective
Can be confusedceiling sealing
Definition for seal (2 of 4)
noun, plural seals, (especially collectively for 1) seal.
verb (used without object)
Origin of seal2
Related formsseal·like, adjective
Definition for seal (3 of 4)
verb (used with object) Falconry.
Definition for seal (4 of 4)
Origin of SEAL
Examples from the Web for seal
Now the lead breacher explained how he cut through the steel doors bin Laden used to seal himself into the compound at night.
He speaks of her much as he might of his elder son, the SEAL.For Next AG, Obama Picks a Quiet Fighter With a Heavy Punch|Michael Daly|November 8, 2014|DAILY BEAST
She worked with SEAL Team Six and retired with the rank of senior chief.Yes to LGB, No to T: The Pentagon Still Has a Transgender Ban|Tim Mak|October 21, 2014|DAILY BEAST
The New York Historical Society plans to seal a new time capsule this week that is more reflective of our current pop culture.
Stephen Colbert dug up the clip and had a laugh, sprinkling on some fun with puns to seal the deal.Dumpster Politicians, Jeter Tributes, and More Viral Videos|Jack Holmes|September 21, 2014|DAILY BEAST
And when the third seal was broken, another of the winged animals bellowed like a thunder clap, "Come and see!"The Four Horsemen of the Apocalypse|Vicente Blasco Ibanez
His other hand went to the seal of authority around his neck, as though it gave him some sort of protection.Captives of the Flame|Samuel R. Delany
Henry donated the windows and he had Diana of Poitiers pictured among the righteous souls in the fifth seal of the Apocalypse.How France Built Her Cathedrals|Elizabeth Boyle O'Reilly
Some he cut deep into the wood in sharp furrows like the letters on a seal.The Young Emigrants; Madelaine Tube; The Boy and the Book; and Crystal Palace|Susan Anne Livingston Ridley Sedgwick
Someone came running up to a little group of us with several packets of cartridges, one with the seal broken.The Relief of Mafeking|Filson Young
British Dictionary definitions for seal (1 of 2)
- to mark with one's sign or seal
- to endorse
Derived Formssealable, adjective
Word Origin for seal
British Dictionary definitions for seal (2 of 2)
Derived Formsseal-like, adjective
Word Origin for seal
Science definitions for seal
Idioms and Phrases with seal
In addition to the idioms beginning with seal
- seal of approval
- seal off
- seal one's fate
- lips are sealed
- set one's seal on
- signed, sealed and delivered