Definition of heterochromatic in English:

heterochromatic

adjective

  • 1Of several different colours or (in physics) wavelengths.

  • 2Biochemistry
    Relating to heterochromatin.

    • ‘In wild-type chromosomes, these proteins are confined to the heterochromatic DNA sequences either by terminator sequences or by proximally directed initiators.’
    • ‘Although the repetitive nature of heterochromatic DNA has hampered its sequencing and annotation, a number of recent studies have made significant advances to rectifying this situation.’
    • ‘The female-specific avian W chromosome shares several characteristics with the mammalian Y chromosome; it is small, gene-poor, and rich in repetitive heterochromatic DNA.’
    • ‘This phenomenon is discussed in light of a possible role of heterochromatic proteins in the process of heterochromatin underrepresentation in polytene chromosomes.’
    • ‘Recent findings described association processes after 4 - Gy irradiation during the first hour of repair for heterochromatic regions, but not euchromatic regions.’

Pronunciation:

heterochromatic

/ˌhɛt(ə)rəʊkrəˈmatɪk/