A refractile substance composed of chromatin, thought to be a nonglycogen food reserve contained within the cytoplasm of certain protozoa; seen in cysts of Entamoeba histolytica as rounded bars or chromatoidal bodies in contrast to the splintery form of c. bodies in cysts of Entamoeba coli. [chromato- + G. eidos, form]

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chro·ma·toid 'krō-mə-.tȯid adj resembling chromatin esp. in affinity for stains <\chromatoid granules>

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chro·ma·toid (kroґmə-toid) dying or staining like, or otherwise resembling, chromatin; see also under body.

Medical dictionary. 2011.

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Look at other dictionaries:

  • chromatoid body — one of the dense accumulations of RNA found in the cysts of certain amebae (e.g., Entamoeba species), manifested as a deeply staining rodlike body. Called also chromatoid bar …   Medical dictionary

  • chromatoid — chro·ma·toid …   English syllables

  • chromatoid — ˈkrōməˌtȯid adjective Etymology: International Scientific Vocabulary chromat + oid; originally formed in German : resembling chromatin especially in affinity for stains …   Useful english dictionary

  • chromatoid body — A body containing ribonucleoprotein material found near the nucleus during certain stages of spermatogenesis …   Dictionary of invertebrate zoology

  • chromatoid grains — In cell protoplasm, granules that stain similarly to chromatin …   Dictionary of invertebrate zoology

  • chromatoid bar — see under body …   Medical dictionary

  • accessory body — Argyrophil particles obtained from Golgi bodies in spermatocytes; see chromatoid body …   Dictionary of invertebrate zoology

  • chromatic body — see chromatoid body …   Dictionary of invertebrate zoology

  • chromatin — chromatinic, adj. chromatoid, adj. /kroh meuh tin/, n. Cell Biol. the readily stainable substance of a cell nucleus, consisting of DNA, RNA, and various proteins, that forms chromosomes during cell division. See diag. under cell. [1880 85;… …   Universalium

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