Expand the term ELISA.

Explanation

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

1. **Understanding the Term ELISA**: The term ELISA refers to a specific laboratory technique used for detecting and quantifying substances such as proteins, hormones, and antibodies in a sample.

2. **Breaking Down the Acronym**: ELISA stands for "Enzyme-Linked ImmunoSorbent Assay." Each part of the term has a specific meaning:
- **Enzyme-Linked**: This indicates that an enzyme is attached to an antibody or antigen in the assay.
- **Immuno**: This part refers to the immune response, specifically the interaction between antigens (substances that provoke an immune response) and antibodies (proteins produced by the immune system).
- **Sorbent**: This refers to the solid phase of the assay where the antigens or antibodies are immobilized.
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