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Synonyms

bulbous

American  
[buhl-buhs] / ˈbʌl bəs /
Also bulbaceous

adjective

  1. bulb-shaped; bulging.

  2. having or growing from bulbs.


bulbous British  
/ ˈbʌlbəs /

adjective

  1. shaped like a bulb; swollen; bulging

  2. growing from or bearing bulbs

"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

Other Word Forms

Etymology

Origin of bulbous

From the Latin word bulbōsus, dating back to 1570–80. See bulb, -ous

Explanation

Something that's bulbous is round or bulging. If you hit your head on the edge of your locker, you may end up with a tender, bulbous lump. While anything that has the shape of a bulb — like an onion or a light bulb — can be described as bulbous, it almost always describes someone's nose. It's not very nice to tell your friend he has a bulbous nose, though it may be accurate. You can also call a plant bulbous if it's grown from a bulb. This is the earliest, 16th century use of the word, while the "bulb-shaped" meaning came along about 200 years later.

Keep Reading on Vocabulary.com

Vocabulary lists containing bulbous

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:

Early designs were so ugly—with an unflattering roof line that gave the vehicle a bulbous appearance—that some frustrated employees began calling the vehicle the “white whale.”

From The Wall Street Journal Jan. 30, 2026

It featured floral motifs on fabrics or as accessories, while sculptural bulbous dresses were inspired by the work of Kenya-born ceramicist Magdelene Odundo.

From Barron's Jan. 26, 2026

According to company lore, Harmsworth took inspiration for the bottles' bulbous shape from the Indian clubs he used for exercise following a crippling car accident.

From BBC Aug. 8, 2025

They’re uncomfortably wedged into black dress shoes, with bulbous flesh spilling out over the edges.

From Slate Jul. 18, 2025

That black greasy chassis, that bulbous differential was his only home.

From "Atonement" by Ian McEwan

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