Plural of helix; multiple spiral or coil shapes, or multiple spiral structures like interlocking DNA strands.
From 'helix' + '-es' (irregular plural). Both 'helixes' and 'helices' are accepted plurals, with 'helixes' more common in everyday use.
The plural is surprisingly debated—scientists argue over 'helixes' versus 'helices,' but both are correct, showing how even ancient Greek words adapt to modern English pluralization rules.
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