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tetragonal(adjective, four-sided, right-angled)
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undulate
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undulations
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unidimensional
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vibratile
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vibratory
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virgate
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wavelike
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with straight lines(expression, adjective, idiom, straight-lined)
11 years ago|1.3k views|share |citing 
APASmart Define. (2015). rectilinear thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/rectilinear/thesaurus/synonyms
ChicagoSmart Define. 2015. "rectilinear thesaurus" https://smartdefine.org/rectilinear/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, rectilinear thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/rectilinear/thesaurus/synonyms>.
MLASmart Define. "rectilinear thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/rectilinear/thesaurus/synonyms>