GRE Word List

COG

a tooth on the rim of a wheel or gear

The meaning of the word cog is a tooth on the rim of a wheel or gear.

Random words

WordMeaning
capricea sudden, impulsive, and seemingly unmotivated notion or action
opaqueblocking the passage of radiant energy and especially light : exhibiting opacity (see opacity
doldrumsa spell of listlessness or despondency
ventureto proceed especially in the face of danger
atavismrecurrence in an organism of a trait or character typical of an ancestral form and usually due to genetic recombination
thesisa dissertation embodying results of original research and especially substantiating a specific view
precincta part of a territory with definite bounds or functions often established for administrative purposes : district
meandera winding path or course
concavehollowed or rounded inward like the inside of a bowl
moltenfused or liquefied by heat : melted