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ji a l ji
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part of speech: noun
inflections: geologies
definition 1: the study of the physical structure of the earth and how it has changed over time. Geologists gain this knowledge by studying rocks. Some geologists study other planets.
definition 2: the parts of a particular place or planet that have to do with geology.
We will study the geology of the Rocky Mountains.
derivation: geologist (n.)
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a broader category that includes geology
some activities in geology
some kinds of geology
some parts of geology
some processes studied in geology
some things that affect geology
some tools used in geology
Word Parts  About this feature
The word geology contains the following parts:
geo Greek root that means earth
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terr, terra
-logy, -ology Greek noun-forming suffix that means study of, science of; written work; structure or principle
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The suffix -logy , -ology forms nouns from bases that are predominantly Greek roots. It is a terminal form of the root log, logo, -logue which in the vast majority cases signifies the study or science of the subject indicated by the base. In some words, however, -ology carries the meaning "written work" (trilogy) or "structure" (homology). See log, logo, -logue. Most nouns ending in -logy , -ology have an adjective form ending in "-ical." (dermatology, dermatological).