Definition of cog
1 : a tooth on the rim of a wheel or gear
2 : a subordinate but integral person or part
People Are Reading
Origin and Etymology of cog
Middle English cogge, of Scandinavian origin; akin to Swedish kugge cog
First Known Use: 13th century
Other Mechanical Engineering Terms
Origin and Etymology of cog
obsolete cog a trick
First Known Use: 1532
cog
Definition of cog
cogged
;cogging
transitive verb
: to connect (timbers, joists, etc.) by means of mortises and tenons
Origin and Etymology of cog
probably alteration of cock to cog
First Known Use: 1823
cog
Definition of cog
: a tenon on a beam or timber
1830
First Known Use of cog
1830
cog
Definition of cog
cognate
Other Language Terms
COG Defined for Kids
Learn More about cog
-
See words that rhyme with cog Spanish Central: Translation of cog Nglish: Translation of cog for Spanish speakers Britannica English: Translation of cog for Arabic speakers Britannica.com: Encyclopedia article about cog
Seen and Heard
What made you want to look up cog? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!