1. The mutual interlocking of toothed or tonguelike processes. 2. The processes thus interlocked. 3. Infoldings or plicae of adjacent cell or plasma membranes. 4. SYN: intercuspation (2). [inter- + L. digitus, finger]
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in·ter·dig·i·ta·tion (in″tər-dij″ĭ-taґshən) [inter- + digitation] 1. an interlocking of parts by fingerlike processes. 2. any one of a set of fingerlike processes.Medical dictionary. 2011.