Tapetum

Acceptable For Game Play - US & UK word lists

This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

The American Heritage® Dictionary of the English Language, 4th Edition
  • n. Botany A nutritive tissue within the sporangium, particularly within an anther.
  • n. Anatomy A membranous layer or region, especially the iridescent membrane of the choroid of certain mammals.
  • n. Anatomy A layer of fibers of the corpus callosum forming the roof of part of the lateral ventricle of the brain.
    • Wiktionary, Creative Commons Attribution/Share-Alike License
  • n. A membranous layer of tissue
    • the GNU version of the Collaborative International Dictionary of English
  • n. An area in the pigmented layer of the choroid coat of the eye in many animals, which has an iridescent or metallic luster and helps to make the eye visible in the dark. Sometimes applied to the whole layer of pigmented epithelium of the choroid.
    • The Century Dictionary and Cyclopedia
  • n. In botany, the cell or layer of cells which is immediately outside an archesporium. It is disorganized and absorbed as the spores develop and mature. Also tapete.
  • n. The pigmentary layer of the retina; the tapetum nigrum.
  • n. The fibers from the corpus callosum forming a layer lining the roof of the middle and posterior cornua of the lateral ventricles.
    • Word Usage
    "All night-prowling animals have widely dilatable pupils, and in addition to this they have in the retina a special organ called the tapetum lucidum, the function of which is to reflect to a focus in front of them the relatively few rays of light that enter the widely-dilated pupil and thus enable them the better to see their way."
    Cross Reference
    tapetum lucidum    tapetum nigrum   
    Form
    tapetum lucidum   
     
    Disclaimer: This site has been created by RJ Softwares and is part of the Lexulous & Wordscraper games. The OFFICIAL SCRABBLE PLAYERS DICTIONARY, THE OFFICIAL TOURNAMENT AND CLUB WORD LIST, and associated word lists are properties owned by Hasbro, Inc. in the United States and Canada, and are used with permission.