Definition of interdigitate in English:

interdigitate

verb

[NO OBJECT]
  • (of two or more things) interlock like the fingers of two clasped hands:

    ‘interdigitating metal bars’
    • ‘It could be argued that the chains themselves were partially interdigitating.’
    • ‘The finger domains can interdigitate into the major groove of the DNA helix.’
    • ‘The dermal joint between the two cranial regions may be straight and simple, or complex and interdigitating.’
    • ‘They are supposed to be in two rows, which we call biseriate; however, it often is difficult to see a line of separation because of the way they interdigitate.’
    • ‘In the more solid regions, spindle cells are in loose fascicles, which may interdigitate.’

Origin

Mid 19th century: from inter- ‘between’+ digit + -ate.

Pronunciation:

interdigitate

/ˌɪntəˈdɪdʒɪteɪt/