retuse

[ri-toos, -tyoos]

adjective

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

retuse

/ rɪˈtjuːs /

adjective

1. botany having a rounded apex and a central depression

   retuse leaves

Word History and Origins

Origin of retuse¹

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

Word History and Origins

Origin of retuse¹

C18: from Latin retundere to make blunt, from _re- + tundere to pound

Example Sentences

Shell transversely oblong, thick, depressed, within purple; hinge plate thick, truncate, with an obsolete lamellar tooth in each valve; umbones retuse.

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Shell oval, broad, thick; hinge margin subarcuated, the extremities winged and angulated; umbones prominent, the tips retuse.

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Involucral leaves numerous, small, incised, those of the stem rounded or retuse.

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Leaves entire or barely retuse.

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Loosely and widely pinnate; leaves round, entire, opaque; lower lobe subrounded, cucullate, close to the stem; underleaves subquadrate, toothed at the anterior angles; involucral leaves with 2 or 3 entire lobes; perianth tuberculate, retuse.—Rocks and trunks of trees; rather common.

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