Which of the following defines the term opiates ?

Options

A. Narcotic analgesics obtained from the oprium poppy.
B. Non-narcotic analgesics which reduce fever.
C. Narcotic drugs that inhibit pathogenic microbes .
D. Tranquilizers used to induce sleep .

Explanation

To define the term "opiates," we need to analyze the provided options and determine which one accurately describes what opiates are.

### Step-by-Step Solution:

1. **Understanding Opiates**: Opiates are substances that are derived from opium, which is obtained from the opium poppy plant. They are primarily used for their analgesic (pain-relieving) properties.

2. **Analyzing the Options**:
- **Option A**: "Narcotic analgesics obtained from the opium poppy."
- This option directly refers to substances that are derived from opium and are used to relieve pain. Examples include morphine and codeine, which are indeed classified as opiates.
- **Option B**: "Non-narcotic analgesics which reduce fever."
- This option describes non-narcotic analgesics like aspirin or acetaminophen, which are not derived from opium and do not fall under the category of opiates.
- **Option C**: "Narcotic drugs that inhibit pathogenic microbes."
- This option refers to certain narcotic drugs that may have antimicrobial properties, but it does not specifically define opiates.
- **Option D**: "Transquilizers used to induce sleep."
- This option describes tranquilizers, which are used for anxiety and sleep disorders, but again, this does not define opiates.

3. **Conclusion**: After analyzing all the options, it is clear that **Option A** is the correct definition of opiates, as they are narcotic analgesics obtained from the opium poppy.

### Final Answer:
**Opiates are defined as narcotic analgesics obtained from the opium poppy.** (Option A)

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