Definify.com
Webster 1913 Edition
Contact
Con′tact
(kŏn′tăkt)
, Noun.
1.
A close union or junction of bodies; a touching or meeting.
2.
(Geom.)
The property of two curves, or surfaces, which meet, and at the point of meeting have a common direction.
3.
(Mining)
The plane between two adjacent bodies of dissimilar rock.
Raymond.
Contact level
, a delicate level so pivoted as to tilt when two parts of a measuring apparatus come into contact with each other; – used in precise determinations of lengths and in the accurate graduation of instruments.
Webster 1828 Edition
Contact
CONTACT
,Noun.