umbonate

[ uhm-buh-nit, -neyt ]

adjective

1. having an umbo or projecting boss.
2. shaped like an umbo; having a rounded convex form:

   an umbonate fungus.

Other Words From

• sub·umbo·nate adjective

Word History and Origins

Origin of umbonate¹

1820–30; < Latin umbōn- (stem of umbō; umbo ) + -ate ¹

Example Sentences

The pileus is thin, strongly umbonate, adorned with brown spot-like scales.

From Project Gutenberg

The umbonate pileus and the nearly free, broad, gray gills will distinguish it.

From Project Gutenberg

Recognised by very thin, acutely umbonate p.; owing to absence of description of milk, position uncertain.

From Project Gutenberg

The pileus is convex to expanded, sometimes broadly umbonate in age, and usually with radiating wrinkles extending irregularly.

From Project Gutenberg

The pileus is often umbonate or gibbous, and the center is often darker than the margin.

From Project Gutenberg