Penicillin is commonly called ............. ... and was discovered by ........

Explanation

**Step-by-Step Text Solution:**

1. **Understanding Penicillin**: Penicillin is an antibiotic, which is a chemical substance produced by certain microorganisms that can kill or inhibit the growth of pathogenic organisms (disease-causing microorganisms).

2. **Common Name of Penicillin**: Penicillin is commonly referred to as the "Wonder Drug" or "Miracle Drug." This name is attributed to its effectiveness in treating a wide range of infectious diseases and its significant impact on saving lives, especially during times of war.

3. **Discovery of Penicillin**: Penicillin was discovered by the scientist Alexander Fleming. His discovery marked a significant advancement in medical science, particularly in the treatment of bacterial infections.

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