plagiohedral

[ pley-jee-uh-hee-druh l ]
/ ˌpleɪ dʒi əˈhi drəl /

adjective

(of a crystal) having faces arranged obliquely in a helix.
Also pla·gi·he·dral [pley-juh-hee-druh l] /ˌpleɪ dʒəˈhi drəl/.

Origin of plagiohedral