The Collaborative International Dictionary of English v.0.48:

Angulous \An"gu*lous\, a. [L. angulosus: cf. F. anguleux.]
   Angular; having corners; hooked. [R.]
   [1913 Webster]

         Held together by hooks and angulous involutions.
                                                  --Glanvill.
   [1913 Webster]