Give a one-word scientific term for the following:
body filled cavity in arthropods.

Explanation

**Step-by-Step Solution:**

1. **Identify the Organism Group**: The question specifies "arthropods," which are a diverse group of invertebrates that include insects, arachnids, crustaceans, and others.

2. **Understand Body Cavities**: In biological terms, body cavities can be classified into different types, such as coelom, pseudocoelom, and hemocoel. Each type has distinct characteristics and functions.

3. **Define Hemocoel**: In arthropods, the body cavity is referred to as a "hemocoel." This is an open body cavity where the blood (hemolymph) flows freely and directly bathes the organs and tissues.

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