maltese cross: a cross with triangular or arrow-shaped arms and the points toward the center
entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
ebola hemorrhagic fever: a severe and often fatal disease in humans and nonhuman primates (monkeys and chimpanzees) caused by the Ebola virus; characterized by high fever and severe internal bleeding; can be spread from person to person; is largely limited to Africa