centrifugal delta-shaped deltalike deltoid divaricate divaricating divergent diverging fan-shape fanlike fanned fanning flabelliform flared flaring open outspread outstretched palmate palmated patulous splay splayed splaying spraddled spraddling sprangled sprangling sprawling sprawly spread spreading stretched-out three three-in-one triadic trial triangular trinal trine triple triplex triune unfolded wide-open widespread