Medical Suffix

-logy

study of

From Greek -logia, study (logos, word, account)

Meaning

What does -logy mean?

-logy is a suffix meaning study of. It comes from Greek -logia, study (logos, word, account).

The o before -logy comes from the root's combining vowel, which is why so many fields end in -ology.

In real words

cardiology
1. Rootcardi/oheart
2. Suffix-logystudy of
the branch of medicine that deals with the heart, how it works and its diseases
hematology
1. Roothem/oblood
2. Suffix-logystudy of
the branch of medicine that deals with the blood and the organs that make it · UK spelling: haematology
gynecology
1. Rootgynec/owoman, female
2. Suffix-logystudy of
the branch of medicine that deals with women's health, especially the reproductive organs · UK spelling: gynaecology
endocrinology
1. Rootendocrin/oendocrine glands
2. Suffix-logystudy of
the science and medical specialty that deals with the endocrine glands and their hormones
biology
1. Rootbi/olife
2. Suffix-logystudy of
the science of life and living things in all their forms
urology
1. Rootur/ourine, urinary tract
2. Suffix-logystudy of
the branch of medicine that treats diseases of the urinary tract and the male reproductive organs
cytology
1. Rootcyt/ocell
2. Suffix-logystudy of
the study of cells, especially under a microscope to look for disease
fetology
1. Rootfet/ofetus
2. Suffix-logystudy of
the field of medicine that studies, diagnoses and treats the fetus

Don't mix it up

In the dictionary

Terms in our life science dictionary that list -logy among their word parts.

Sources

Written for biofideX in plain words, after checking these references:

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Practice it

-logy is one of 5 parts in this lesson. Learn them together, then take real words apart.