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Blood & Immune System — Word Roots
Word roots naming blood, its cells and the immune system that defends the body.
This page lists all 7 of them. Open any root for example words that use it.
| Word part | Type | Meaning |
|---|---|---|
| erythr | Word root | red |
| hem | Word root | blood |
| hemat | Word root | blood |
| immun | Word root | immune; immunity |
| leuk | Word root | white |
| lymph | Word root | lymph |
| splen | Word root | spleen |
Please note: This section teaches the language of medicine — what word parts mean and how terms are built. It is an educational reference, not medical advice. For the meaning of a word in your own medical record, ask the clinician who wrote it.