11-Letter Words Containing: P,O,S

• any of various usually free-swimming marine coelenterates having a gelatinous medusoid stage as the dominant phase of its life cycle

• pose a threat to; present a danger to

• put at risk

• any disease of the mind; the psychological state of someone who has emotional or behavioral problems serious enough to require psychiatric intervention

• a dry dehiscent fruit that at maturity splits into two or more parts each with a single seed

• place side by side

• the prevention of disease