thick filament
noun
: a myofilament of one of the two types making up myofibrils that is 10 to 12 nanometers (100 to 120 angstroms) in width and is composed of the protein myosin compare thin filament
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“Thick filament.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/thick%20filament. Accessed 4 Dec. 2025.
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