Xiphura
Xi*phu"ra\, n. pl. [NL., from Gr. xi`fos sword + ? tail.] (Zo["o]l.) Same as Limuloidea. Called also Xiphosura. X ray. See under Ray.:10
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| the offspring of a zebra and a donkey. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |