myofibril
myo·fib·ril
noun
1.
one of many contractile filaments that make up a striated muscle fiber
Origin
From myo- + fibril.
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Part of
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.