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trun·nion
 trunnion
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- pronunciation:
- truhn
y
 n
- features:
- Word Combinations (noun)
| part of speech: |
noun |
| definition 1: |
one of a pair of cylindrical pins on either side of a cannon that support it on its carriage or mount.
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| definition 2: |
either of any similar pair of pins supporting machinery.
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