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[root-lit, roo t-] /ˈrut lɪt, ˈrʊt-/
noun, Botany.
a little root.
a small or fine branch of a root.
one of the adventitious roots by which ivy or the like clings to rocks or other supports.
Origin of rootlet
First recorded in 1785-95; root1 + -let Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for rootlet
Historical Examples
  • At last it lit upon a rootlet of the tree, quite over her shoulder.

    Selected Stories Bret Harte
  • The obstruction of granite rocks, cannot force the rootlet upward, nor drive the leaflet down.

    The Reason Why Anonymous
  • It sent downward a rootlet to get soil and water, and upward it shot a stem to which the first pair of leaves was attached.

    Arbor Day Leaves N.H. Egleston
  • Every growing shoot of a great tree is continually describing small ellipses; the tip of every rootlet endeavours to do the same.

    Life of Charles Darwin

    G. T. (George Thomas) Bettany
  • No structure in plants appears more wonderful, as Darwin describes it, than the tip of the rootlet of a seedling.

    Life of Charles Darwin

    G. T. (George Thomas) Bettany
  • At last it lit upon a rootlet of the tree quite over her shoulder.

  • But how is material conveyed from rootlet to veinlet of leaf hundreds of feet away?

    Among the Forces

    Henry White Warren
  • The structure of the root is best studied in the seedling plant, or in a rootlet of an older one.

  • Every rootlet lends itself to steady the growing giant, as if in anticipation of fierce conflict with the elements.

    How to Succeed Orison Swett Marden
  • It contained a piece of stick, but this may be merely the remains of a rootlet many of which had penetrated into the grave.

    The Archaeology of the Yakima Valley Harlan Ingersoll Smith
British Dictionary definitions for rootlet


a small root or branch of a root
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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