Dictionary
1countersink
verb coun·ter·sink \ˈkau̇n-tər-ˌsiŋk\
coun·ter·sunk\-ˌsəŋk\coun·ter·sink·ing
Definition of COUNTERSINK
transitive verb
1
: to make a countersink on (a hole)
2
: to set the head of (as a screw) at or below the surface
See countersink defined for kids ADVERTISEMENT
First Known Use of COUNTERSINK
1816
Rhymes with COUNTERSINK
2countersink
noun
Definition of COUNTERSINK
1
: a bit or drill for making a funnel-shaped enlargement at the outer end of a drilled hole
2
: the enlargement made by a countersink
Illustration of COUNTERSINK
First Known Use of COUNTERSINK
1816
Browse
Next Word in the Dictionary: countersinkerPrevious Word in the Dictionary: countersignAll Words Near: countersink
ADVERTISEMENT
Seen & Heard
What made you want to look up countersink? Please tell us where you read or heard it (including the quote, if possible).