byssus

American  

[bis-uhs] / ˈbɪs əs /

noun

• byssuses,
  plural
• byssi
  plural

1. Zoology. a collection of silky filaments by which certain mollusks attach themselves to rocks.

2. an ancient cloth, thought to be of linen, cotton, or silk.

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byssus British  

/ ˈbɪsəs /

noun

1. a mass of strong threads secreted by a sea mussel or similar mollusc that attaches the animal to a hard fixed surface

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Other Word Forms

Derived Forms

• byssaceous
  adjective
• byssal
  adjective
• byssoid
  adjective

Inflected Forms

Nouns

• byssi
  plural
• byssuses
  plural

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Etymology

Origin of byssus

1350–1400; Middle English < Latin < Greek býssos a fine cotton or linen < Semitic; compare Hebrew būts

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Example Sentences

See Examples For:

byssus byssuses

Using this similarity as a starting point, they developed a method for processing pen shell byssus into a material that recreates the appearance of ancient sea silk.

From Science Daily ● Jun. 12, 2026

"Dreissenid byssus fibers, which resemble spider silk structurally, could inspire future development of tough polymer fibers, contributing to more durable and sustainable materials typically used in textiles and technical plastics."

From Science Daily ● Dec. 8, 2023

Looking to nature for inspiration, the McGill-led research zeroed in on the marine mussel byssus, a fibrous holdfast, which these bivalve mollusks use to anchor themselves in seashore habitats.

From Science Daily ● Dec. 1, 2023

The byssus is not unsafe for diners, but it is unattractive.

From Washington Post ● Oct. 29, 2020

Joseph ordered his father's body to be placed upon a couch of ivory, covered with gold, studded with gems, and hung with drapery of byssus and purple.

From The Legends of the Jews — Volume 2 by Henrietta Szold

Eventually the larvae find a surface to their liking and settle down, mooring themselves with sticky, hairlike threads called byssuses.

From Time Magazine Archive

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