WordReference Random House Learner's Dictionary of American English © 2015
i•so•late /v. ˈaɪsəˌleɪt; n., adj. -lɪt, -ˌleɪt/USA pronunciation v. [+ object],-lat•ed, -lat•ing.
  1. to set or place apart;
    separate so as to be alone:He was isolated in a little cubicle by himself.
  2. Medicineto keep (an infected person) from contact with noninfected persons; quarantine.
  3. Chemistry, Microbiologyto obtain (a chemical substance or microorganism) in a separate or pure state, not in combination with other substances.
i•so•la•tion /ˌaɪsəˈleɪʃən/USA pronunciationn. [uncountable]a desperate feeling of isolation in the big city.

Collins Concise English Dictionary © HarperCollins Publishers::

isolate vb /ˈaɪsəˌleɪt/(transitive)
  1. to place apart; cause to be alone
  2. to quarantine (a person or animal) having or suspected of having a contagious disease
  3. to obtain (a compound) in an uncombined form
  4. to obtain pure cultures of (bacteria, esp those causing a particular disease)
  5. to prevent interaction between (circuits, components, etc); insulate
n /ˈaɪsəlɪt/
  1. an isolated person or group
Etymology: 19th Century: back formation from isolated, via Italian from Latin insulātus, literally: made into an island; see insulate

ˈisolable adj ˌisolaˈbility n ˈisoˌlator n

'isolated' also found in these entries:

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