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Hema- is a combining form used like a prefix meaning “blood.” It is used in some medical terms, especially in pathology.

Hema- comes from the Greek ��î����, meaning “blood.”

Hema- is a rare variant of hemo-. The spelling haema- is chiefly used in British English.

Want to know more? Read our �y��vlogs That Use hemo- �����پ�������.��

Hema- and haema- are two of the many variants of the combining form hemo-. Others are hem-, hemato-, and hemat-.

As with haema-, all of these combining forms are often spelled with an additional a in British English, as in haem-, haemo-, haemat-, and haemato-. Historically, these forms have been spelled with a ligature of the a and e, as in �����-.

Also closely related to hema- are -aemia, -emia, -haemia, and -hemia, which are combined to the ends of words to denote blood conditions.

You can learn all about the specific applications for each of these forms at our �y��vlogs That Use articles for them.

One example of a medical term that features the combining form hema- is hemacytometer, also known as a hemocytometer, meaning “an instrument for counting blood cells.”

The hema- part of hemacytometer means “blood.” The second part of the word, cyto-, is a combining form that means “cell.” The final part of the word, -meter, means “measure.” Hemacytometer literally translates to “blood cell measurer.” (A hemocyte is a technical term for a blood cell.)

What are some words that use the combining form hema-?

• hemachromatosis
• hemafibrite
• hematherm

What are some other forms that hema- may be commonly confused with?

• chemi–
• chemo-
• chromato-
• hemangio-
• hemi-
• homo-
• homeo-
• stomato-

The combining form -therm means “hot, heat.” An animal described as a hematherm would be:

A. cold-blooded

B. warm-blooded