preexperiment

adjective · nounC1

Định nghĩa theo từ loại

Tính từ

adjective

1.
(not comparable)Before an experiment takes place.

Danh từ

noun

Plural noun:

preexperiments

1.
A simple form of research that examines a group or groups before and after an event, to see whether there is change, but does not employ a control group.

Nguồn gốc từ

From pre- + experiment.