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Science words with logy at the end

This list collects academic words ending in the suffix -logy, which means the study of something. It suits middle and high school students building science vocabulary, as well as anyone studying Greek and Latin roots for a standardized test. Notice the root before -logy in each word, since it usually names exactly what that field of study examines.

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Science words with logy at the end

30 words
WordMeaningIn a sentenceSave
biologynounThe scientific study of living organisms, including their structure, function, growth, and evolution.In biology class, we dissected a frog to study its internal organs.
geologynounThe scientific study of the Earth's physical structure, substance, history, and the processes that shape it.Her fascination with geology began after she found fossils embedded in a roadside cliff.
psychologynounThe scientific study of the human mind and how it influences behavior, thought, and emotion.She studied psychology in college and later became a licensed therapist.
sociologynounThe academic study of the development, structure, and functioning of human society.Her introductory sociology course examined how social class affects access to education.
anthropologynounThe scientific study of human beings, their societies, cultures, and development over time.She is studying anthropology to understand how ancient tribes organized their communities.
archaeologynounThe scientific study of past human life and activities through the excavation and analysis of physical remains.She studied archaeology in college and later worked on digs across the Mediterranean.
mythologynounA collection of traditional stories, especially about gods and heroes, belonging to a particular culture.Greek mythology explains natural events through the actions of gods like Zeus and Poseidon.
technologynounThe application of scientific knowledge for practical purposes, especially in industry and everyday devices.New technology has transformed how doctors diagnose and treat rare diseases.
theologynounThe systematic study of religious belief, the nature of God, and questions of faith.She spent four years studying theology before becoming an ordained minister.
astrologynounThe belief and practice of studying the positions of stars and planets to predict human affairs and events.She reads her horoscope every morning because she takes astrology seriously.
zoologynounThe scientific study of animals, including their structure, behavior, classification, and distribution.She switched her major to zoology after volunteering at a wildlife rehabilitation center.
ecologynounThe scientific study of how living things interact with each other and their environment.The university's ecology course examined how wolves affect deer populations in the region.
ideologynounA system of ideas and ideals, especially about politics or economics, that shapes how a person or group thinks and acts.The two parties disagreed sharply, each guided by a very different ideology.
chronologynounThe arrangement of events in the order they occurred, or a record showing that order.The book includes a chronology of major events leading up to the revolution.
terminologynounThe set of specialized terms and words used in a particular subject, profession, or field of study.Medical terminology can be confusing for patients unfamiliar with the field.
methodologynounA system of methods and principles used to carry out research or a particular activity.The thesis included a detailed methodology explaining exactly how the data was collected.
pathologynounThe scientific study of the causes, effects, and nature of diseases.She specialized in pathology, examining tissue samples to diagnose cancer accurately.
physiologynounThe scientific study of how living organisms and their body parts function normally.The physiology course covered how the heart and lungs work together during exercise.
morphologynounThe study of the forms and internal structure of words, including how they are built from smaller meaningful parts.In her morphology class, students learned how prefixes and suffixes change a word's meaning.
etymologynounThe study of the origin and historical development of words and their meanings.The dictionary entry traced the word's etymology back to ancient Greek.
genealogynounThe study of family history, or a record showing the line of descent from ancestors.She spent years researching her family's genealogy to trace their roots to Ireland.
criminologynounThe scientific study of crime, its causes, and the behavior of criminals.She earned a degree in criminology before joining the police department.
cardiologynounThe branch of medicine that deals with the study and treatment of heart disorders.After the chest pains continued, her doctor referred her to cardiology for further tests.
radiologynounThe branch of medicine that uses imaging technology, such as X-rays, to diagnose and treat disease.She works in radiology, reading scans to help doctors detect broken bones and tumors.
dermatologynounThe branch of medicine concerned with the diagnosis and treatment of skin conditions.She studied dermatology for years before opening her own skin clinic.
neurologynounThe branch of medicine that deals with the nervous system and its disorders.After her stroke, she was referred to a specialist in neurology for further treatment.
meteorologynounThe scientific study of the atmosphere and weather processes, especially for forecasting purposes.He studied meteorology in college to become a weather forecaster.
seismologynounThe scientific study of earthquakes and the movement of seismic waves through the Earth.Seismology helps engineers design buildings that can withstand powerful earthquakes.
entomologynounThe scientific study of insects, including their behavior, biology, and classification.She switched her major to entomology after discovering her fascination with beetles.
ornithologynounThe scientific study of birds, including their behavior, biology, and classification.Her interest in ornithology began with a childhood habit of sketching birds in the backyard.

What the suffix -logy means

The suffix -logy comes from the Greek word logos, meaning word, reason, or study. Attaching it to a root names an entire field devoted to studying that subject: biology studies life, geology studies the earth, and psychology studies the mind. Once learners recognize -logy as a suffix, unfamiliar words like ornithology or seismology become much easier to define, since the root alone reveals what the field examines.

Frequently asked questions

What does the suffix -logy mean?

The suffix -logy means the study of something, so a word ending in -logy usually names an academic field, such as biology or psychology.