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Definition of celotex

celotex

/ˈsɛl.ə.tɛks/
cel · o · tex
Plural:celotexes
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celotex Lexical Profile

celotex Game Scores & Validity

• noun

1

A type of composition fiberboard made from bagasse (sugar cane residue) or similar cellulose materials, primarily used in building construction for thermal and sound insulation.

Example

"The contractor decided to line the studio walls with sheets of celotex to significantly improve the room's acoustics and energy efficiency."

Synonyms
View all synonyms for celotex

Word Nuance & Usage

Although strictly a capitalized trademark (Celotex) for a specific brand of insulation board, the term is frequently used generically in lowercase within the building trade to refer to any similar fiberboard material.

• Rhymes for celotex

• Nearby Words

cellulite
celluloid
celosia
celotex
celsius
celtic
celts

Word Origin & Etymology

Coined as a trademark in the 1920s by the Celotex Corporation, likely formed as a portmanteau of 'cellulose' and 'texture'.

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Celotex. In Wordmom Dictionary. Retrieved Nov 6, 2026, from https://wordmom.com/dictionary/celotex
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