Wiktionary
vb. (context transitive English) to examine scrupulously
Wikipedia
A comb over or combover is a hairstyle worn by bald or balding men in which the hair is grown long and combed over the bald area to minimize the evidence of baldness. Sometimes the part is lowered so that more hair can be used to cover the balding area.
In Japan, men with comb overs are called "bar code men" （バーコード人）, referring to the similarity between the striations caused by the comb and the UPC on products. The "barcode style" is called "bākōdo na kamigata" （バーコードな髪型）.
Usage examples of "comb over".
The hand not holding her goblet moved constantly, touching the emerald comb over her left ear, patting her hair, covering her bosom, which was largely exposed by her snug bodice of brocaded silvery-gray silk.
Tentatively I smooth some mousse into it then run a comb over the mousse.
Now, his hair hung in a lopsided auburn-and-white scraggle, rather than its usual neat comb over.