controlled

[ kuhn-trohld ]

adjective

1. held in check; curbed:

   poorly controlled anger.

2. carefully regulated, tested, or verified:

   a controlled experiment.

3. (of a drug) restricted by law as to possession and use:

   Morphine is a controlled drug.

Word History and Origins

Origin of controlled¹

First recorded in 1580–90; control ( def ) + -ed ²( def )

Example Sentences

The researchers stress the importance of further studies, especially randomised controlled clinical trials, to better understand the mechanisms behind the findings.

From Science Daily

And the researchers stress their study, published in Annals of Neurology, used carefully controlled prescription medication.

From BBC

Using mice, the researchers pinpointed a group of brain cells in the frontal cortex that connects to the brainstem, where vital actions like breathing are controlled.

From Science Daily

As well as restricting social media for young people, some suggest their use of smartphones should also be more tightly controlled.

From BBC

The test concluded a little over an hour later after Starship fired up its engines again and completed a controlled ocean landing more than 3,000 miles away off the northwest coast of Australia.

From Los Angeles Times

Related Words

• measured
• ordered
• orderly
• organized
• structured
• supervised