- any temporary fortification, as an earthen barrier, made by troops in the field
- the work of collecting scientific data in the field, as by a geologist or botanist
See fieldwork in American Heritage Dictionary 4
- A temporary military fortification erected in the field.
- Work done or firsthand observations made in the field as opposed to that done or observed in a controlled environment.
- The collecting of sociological or anthropological data in the field.
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