English explanatory dictionary online >> seal

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seal 1  (sl)
a. A die or signet having a raised or incised emblem used to stamp an impression on a receptive substance such as wax or lead.
b. The impression so made.
c. The design or emblem itself, belonging exclusively to the user: a monarchs seal.
d. A small disk or wafer of wax, lead, or paper bearing such an imprint and affixed to a document to prove authenticity or to secure it.
2. Something, such as a commercial hallmark, that authenticates, confirms, or attests.
3. A substance, especially an adhesive agent such as wax or putty, used to close or secure something or to prevent seepage of moisture or air.
4. A device that joins two systems or elements in such a way as to prevent leakage.
a. An airtight closure.
b. A closure, as on a package, used to prove that the contents have not been tampered with.
6. A small decorative paper sticker.
tr.v. sealed, seal·ing, seals
1. To affix a seal to in order to prove authenticity or attest to accuracy, legal weight, quality, or another standard.
a. To close with or as if with a seal.
b. To close hermetically.
c. To make fast or fill up, as with plaster or cement.
d. To apply a waterproof coating to: seal a blacktop driveway.
3. To grant, certify, or designate under seal or authority.
4. To establish or determine irrevocably: Our fate was sealed.
5. Mormon Church To make (a marriage, for example) binding for life; solemnize forever.
Phrasal Verb:
seal off
To close tightly or surround with a barricade or cordon: An unused wing of the hospital was sealed off.

[Middle English, from Old French seel, from Vulgar Latin *sigellum, from Latin sigillum, diminutive of signum, sign, seal; see sekw-1 in Indo-European roots.]

seala·ble adj.

seal 2  (sl)
1. Any of various aquatic carnivorous mammals of the families Phocidae and Otariidae, found chiefly in the Northern Hemisphere and having a sleek, torpedo-shaped body and limbs that are modified into paddlelike flippers.
2. The pelt or fur of one of these animals, especially a fur seal.
3. Leather made from the hide of one of these animals.
intr.v. sealed, seal·ing, seals
To hunt seals.

[Middle English sele, from Old English seolh.]

1. a device impressed on a piece of wax, moist clay, etc., fixed to a letter, document, etc., as a mark of authentication
2. a stamp, ring, etc., engraved with a device to form such an impression
3. a substance, esp wax, so placed over an envelope, document, etc., that it must be broken before the object can be opened or used
4. any substance or device used to close or fasten tightly
5. (Miscellaneous Technologies / Building) a material, such as putty or cement, that is used to close an opening to prevent the passage of air, water, etc.
6. (Miscellaneous Technologies / Building) a small amount of water contained in the trap of a drain to prevent the passage of foul smells
7. an agent or device for keeping something hidden or secret
8. anything that gives a pledge or confirmation
9. a decorative stamp often sold in aid of charity
10. (Christianity / Ecclesiastical Terms) RC Church Also called seal of confession the obligation never to reveal anything said by a penitent in confession
set ones seal on (or to)
a.  to mark with ones sign or seal
b.  to endorse
vb (tr)
1. to affix a seal to, as proof of authenticity
2. to stamp with or as if with a seal
3. to approve or authorize
4. (sometimes foll by up) to close or secure with or as if with a seal to seal ones lips seal up a letter
5. (foll by off) to enclose (a place) with a fence, wall, etc.
6. to decide irrevocably
7. (Christianity / Ecclesiastical Terms) Mormon Church to make (a marriage or adoption) perpetually binding
8. (Miscellaneous Technologies / Building) to close tightly so as to render airtight or watertight
9. (Miscellaneous Technologies / Building) to paint (a porous material) with a nonporous coating
10. (Engineering / Civil Engineering) Austral and NZ to consolidate (a road surface) with bitumen, tar, etc.
[C13 seel, from Old French, from Latin sigillum little figure, from signum a sign]
sealable  adj

1. (Life Sciences & Allied Applications / Animals) any pinniped mammal of the families Otariidae (see eared seal) and Phocidae (see earless seal) that are aquatic but come on shore to breed Related adjs otarid, phocine
2. (Life Sciences & Allied Applications / Animals) any earless seal (family Phocidae), esp the common or harbour seal or the grey seal (Halichoerus grypus)
3. (Clothing, Personal Arts & Crafts / Textiles) sealskin
(Individual Sports & Recreations / Hunting) (intr) to hunt for seals
[Old English seolh; related to Old Norse selr, Old High German selah, Old Irish selige tortoise]
seal-like  adj

seal  (sl)
Any of various aquatic carnivorous mammals of the families Phocidae and Otariidae, having a sleek, torpedo-shaped body and limbs that are modified into paddlelike flippers. Seals live chiefly in the Northern Hemisphere and, like walruses, are pinnipeds.

seal  /sil/  n. 1 part of a lid or opening that must be broken or torn off to reach inside a container: We broke the seal on the new aspirin bottle. 2 a tight, perfect closure: The tube had a seal so air couldnt escape. 3 symbols or words pressed into wax, clay, paper, etc. to show that s.t. is approved or official: We have a letter with the princes seal. 4 a brown water animal with flippers that lives in cold areas: They saw many seals off the coast of Alaska. 5 seal of approval: permission or agreement of s.o.: My parents gave their seal of approval to my living alone.
v. [T] 1 to close s.t. firmly: Please seal the envelope and mail it. 2 to reach final agreement: We sealed a plan to build five new houses. 3 phrasal v. sep. to seal s.o. or s.t. in: to prevent from escaping: The prison seals in inmates from 8 P.M. to 8 A.M.||It seals them in. 4 phrasal v. sep. to seal s.t. off: to keep an area secure and not let anyone in or out: The police sealed off the area where the burglary happened.

Thesaurus: conclude. seal

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