Definition:Directrix/Linguistic Note
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Linguistic Note on Directrix
The plural of directrix is directrices.
Sources
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): directrix (plural directrices)
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): directrix (plural directrices)