Morphine (noun)

1. A powerful painkiller and sedative drug, derived from opium and used medically to relieve severe pain.
2. A drug that is similar to morphine but is less addictive and less likely to cause side effects.

Origin:

From the greek morphe (shape, form) and -ine, a suffix indicating a chemical compound.

Examples:

1. He was given a dose of morphine to ease the pain.
2. Morphine can be highly addictive and should only be taken under medical supervision.
3. The morphine was administered intravenously for the most effective pain relief.
4. Morphine is a narcotic pain reliever.
5. It was a morphine overdose that killed him.