(~s, ~ing, ~ed)
1.
To ~ something means to find it or discover that it is present somewhere by using equipment or making an investigation.
...a sensitive piece of equipment used to ~ radiation...
...a device which can ~ who is more at risk of a heart attack.
VERB: V n, V wh
2.
If you ~ something, you notice it or sense it, even though it is not very obvious.
Arnold could ~ a certain sadness in the old man’s face.
= sense
VERB: V n