sen.ˈtȯrēə noun
Usage: capitalized
Etymology: New Latin, from Medieval Latin, centaury ( Chlora perfoliata or Centaurium umbellatum ) — more at centaury
: a large genus of plants (family Compositae) including the cornflower and the knapweed native chiefly to the Old World but now widely cultivated and characterized by flower heads composed entirely of tubular florets, the outer ones often sterile and enlarged so as to simulate ray florets