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retuse

American  
[ri-toos, -tyoos] / rɪˈtus, -ˈtjus /

adjective

  1. having an obtuse or rounded apex with a shallow notch, as leaves.


retuse British  
/ rɪˈtjuːs /

adjective

  1. botany having a rounded apex and a central depression

    retuse leaves

"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

Etymology

Origin of retuse

1745–55; < Latin retūsus (past participle of retundere to make blunt), equivalent to re- re- + tud-, variant stem of tundere to beat, strike + -tus past participle suffix, with dt > s

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Leaves spreading or ascending, ovate, rounded or oblong, entire or retuse, subconcave; underleaves mostly wanting; perianth 3–6 times longer than the leaves, subulate-fusiform, laciniate or ciliate.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray

Leaves succubous, ovate-oblong, entire or slightly retuse; underleaves none.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray

Stems 6–10´´ long; leaves retuse, entire or irregularly indented; perianth obconic, dentate; elaters short and thick; spores brown, depressed-globose-tetrahedral, 40 µ broad, crested, the slender crests pellucid, rarely becoming confluent.—On damp ground.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray

Cones very abundant, 3 to 5 in. long, cylindric, with elongated, undulated, retuse scales.

From Trees of the Northern United States Their Study, Description and Determination by A. C. (Austin Craig) Apgar

Leaves large, incubous, flat or convex, entire or retuse; underleaves small, roundish, the apex entire, retuse or bifid.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray

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