The Collaborative International Dictionary
Tetraxile
Tetraxile \Te*trax"ile\, a. [Tetra- + axile.] (Zo["o]l.) Having four branches diverging at right angles; -- said of certain spicules of sponges.
Wiktionary
tetraxile
a. (context zoology English) Having four branches diverge at right angles; said of certain spicules of sponges.