Sentence:  Nor was the biscuit much better; nearly all of it was broken into hard, little gunflints, honeycombed through and through, as if the worms usually <WSD>infesting</WSD> this article in long tropical voyages had, in boring after nutriment, come out at the antipodes without finding anything. 
Meaning of the word marked with <WSD> tags:  To inhabit a place in unpleasantly large numbers; to plague, harass.