quarantine
    n 1: enforced isolation of patients suffering from a contagious
         disease in order to prevent the spread of disease
    2: isolation to prevent the spread of infectious disease
    v 1: place into enforced isolation, as for medical reasons; "My
         dog was quarantined before he could live in England"

Quarantine \Quar`an*tine"\, v. t. [imp. & p. p. Quarantined;
   p. pr. & vb. n. Quarantining.]
   To compel to remain at a distance, or in a given place,
   without intercourse, when suspected of having contagious
   disease; to put under, or in, quarantine.
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Quarantine \Quar"an*tine\, n. [F. quarantaine, OF. quaranteine,
   fr. F. quarante forty, L. quadraginta, akin to quattuor four,
   and E. four: cf. It. quarantina, quarentine. See Four, and
   cf. Quadragesima.]
   1. A space of forty days; -- used of Lent.
      [1913 Webster]

   2. Specifically, the term, originally of forty days, during
      which a ship arriving in port, and suspected of being
      infected a malignant contagious disease, is obliged to
      forbear all intercourse with the shore; hence, such
      restraint or inhibition of intercourse; also, the place
      where infected or prohibited vessels are stationed.
      [1913 Webster]

   Note: Quarantine is now applied also to any forced stoppage
         of travel or communication on account of malignant
         contagious disease, on land as well as by sea.
         [1913 Webster]

   3. (Eng. Law) The period of forty days during which the widow
      had the privilege of remaining in the mansion house of
      which her husband died seized.
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   Quarantine flag, a yellow flag hoisted at the fore of a
      vessel or hung from a building, to give warning of an
      infectious disease; -- called also the yellow jack, and
      yellow flag.
      [1913 Webster]

QUARANTINE, commerce, crim. law. The space of forty days, or a less quantity 
of time, during which the crew of a ship or vessel coming from a port or 
place infected or supposed to be infected with disease, are required to 
remain on board after their arrival, before they can be permitted to land. 
     2. The object of the quarantine is to ascertain whether the crew are 
infected or not. 
     3. To break the quarantine without legal authority is a misdemeanor. 1 
Russ. on Cr. 133. 
     4. In cases of insurance of ships, the insurer is responsible when the 
insurance extends to her being moored in port 24 hours in safety, although 
she may have arrived, if before the 24 hours are expired she is ordered to 
perform quarantine, if any accident contemplated by the policy occur 1 
Marsh. on Ins. 264. 

QUARANTINE, inheritances, rights. The space of forty days during which a 
widow has a right to remain in her late husband's principal mansion, 
immediately after his death. The right of the widow is also called her 
quarantine. 
      2. In some, perhaps all the states of the United States, provision has 
been expressly made by statute securing to the widow this right for a 
greater or lesser space of time in Massachusetts, Mass. Rev. St. 411, and 
New York, 4 Kent, Com. 62, the widow is entitled to the mansion house for 
forty days. In Ohio, for one year, Walk. Intr. 231, 324. In Alabama, 
Indiana, Illinois, Kentucky, Missouri, New Jersey, Rhode Island and 
Virginia, she may occupy till dower is assigned; in Indiana, Illinois, 
Kentucky, Missouri, New Jersey and Virginia, she may also occupy the 
plantation or messuage. In Pennsylvania the statute of 9 Hen. III., c. 7, is 
in force, Rob. Dig. 176, by which it is declared that "a widow shall tarry 
in the chief house of her husband forty days after his death, within which, 
her dower shall be assigned her." In Massachusetts the widow is entitled to 
support for forty days in North Carolina for one year. 
     3. Quarantine is a personal right, forfeited by implication of law, by 
a second marriage. Co. Litt. 82. See Ind. Rev. L. 209; 1 Virg. Rev. C. 170,; 
Ala. L. 260; Misso. St. 229; Ill. Rev. L. 237; N. J. Rev. C. 397 1 Ken. Rev. 
L. 573. See Bac. Ab. Dower, B; Co. Litt. 32, b; Id, 34, b 2 Inst. 16, 17.