| arborization | The appearance or figure of a tree or plant, as in minerals or fossils; a dendrite. Origin: Cf. F. Arborisation, fr. L. Arbor tree. Source: Websters Dictionary (01 Mar 1998) |
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| arborization block | Intraventricular block supposedly due to widespread blockage in the Purkinje ramifications and manifested in the electrocardiogram by a pattern similar to bundle-branch block but with complexes of low amplitude. (05 Mar 2000) |