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fu·si·form 'fyü-zə-.fȯrm adj tapering toward each end <\fusiform bacteria> <a \fusiform aneurysm>
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adj.
spindle-shaped; tapering at both ends.
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fu·si·form (fuґzĭ-form) [fus- + form] shaped like a spindle; tapered at each end.Medical dictionary. 2011.