hollow strakes. sunken places.
than the wall. Figure of speech Ellipsis, App-6. = "deeper than [the surface of] the wall".
Related Commentaries of Leviticus 14:37
Leviticus 14:37
37 And he shall look on the plague, and, behold, if the plague be in the walls of the house with hollow strakes, greenish or reddish, which in sight are lower than the wall;