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[rab-duh m, -dom]
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noun Anatomy, Zoology.
  1. any of various rod-shaped structures.
  2. the rod-shaped portion of an arthropod ommatidium.
Also rhab·dome [rab-dohm] /ˈræb doʊm/.

Origin of rhabdom

1875–80; < Late Greek rhábdōma bundle of rods; see rhabdo-, -oma
Related formsrhab·do·mal [rab-doh-muh l, rab-duh-muh l] /ræbˈdoʊ məl, ˈræb də məl/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for rhabdom

Historical Examples

  • B, Rhabdom of the same, consisting of five confluent rhabdomeres.

    Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 3


  • Rhabdom: the rod lying in the axis of the retinula, below the crystalline cone of an eye.