| autochthonous ideas | Thoughts that suddenly burst into awareness as if they are vitally important, often as if they have come from an outside source. (05 Mar 2000) |
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| flight of ideas | An uncontrollable symptom of the manic phase of a bipolar depressive disorder in which streams of unrelated words and ideas occur to the patient at a rate that is impossible to vocalise despite a marked increase in the individual's overall output of words. See: mania. (05 Mar 2000) |
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| autochthonous | Derived from within a system, such as organic matter in a stream resulting from photosynthesis by aquatic plants. Compare: allochthonous. (09 Oct 1997) |
| autochthonous malaria | Disease acquired by mosquito transmission in an area where malaria regularly occurs. (05 Mar 2000) |
| autochthonous parasite | A parasite descended from the tissues of the host. Synonym: autochthonous parasite. (05 Mar 2000) |