Name the disorder associated with over-secretion of STH in adult.

Explanation

**Step-by-Step Solution:**

1. **Understanding STH**: The first step is to identify what STH stands for. STH is an abbreviation for Somatotropic Hormone, which is also known as Growth Hormone (GH). It plays a crucial role in regulating growth and development in the body.

2. **Identifying the Disorder**: Next, we need to determine the disorder associated with the over-secretion of STH in adults. When there is an excess of somatotropic hormone in adults, it leads to a condition known as Acromegaly.

3. **Differentiating Between Age Groups**: It is important to note that the effects of over-secretion of STH differ based on age. In children, the over-secretion results in a condition called gigantism, characterized by excessive growth. However, in adults, the condition is referred to as Acromegaly.

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