adjective oxy·di·act \¦äksə̇¦dīˌakt, ¦äksē¦-\

Definition of oxydiact

  1. :  having three axes but only two rays developed —used of a sponge spicule

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Origin and Etymology of oxydiact

1oxy- + diact

Seen and Heard

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a rounded knoll or a ridge of ice

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