Relating to or characteristic of antherozooids; possessing the nature or qualities of antherozoids.
From 'antherozooid' + '-al' (adjective suffix). This rarely used variant emerged alongside attempts to standardize botanical terminology in the 19th century.
With multiple spellings floating around—antherozoid, antherozooid, and this adjective form—you can see how technical languages evolve through messiness before settling on standard versions that everyone agrees to use.
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