| Answer | Crossword Clue |
|---|---|
| tetractinal | having four rays also TETRACTINE |
| tetractine | having four rays also TETRACTINAL |
| diactinal | having two rays also DIACT, DIACTINE |
| polyactinal | of a marine animal, having many rays or tentacles also POLYACT, POLYACTINE |
| diact | a sponge spicule having two rays that develop in different directions from a single point of origin also DIACTINE |
| diactine | a sponge spicule having two rays that develop in different directions from a single point of origin also DIACT |
