Sentence:  In India, in the “great mosque” of Jama Masjid (a.d. 1560) and the Gol Gumbaz, or tomb of Mahommed Adil Shah (a.d. 1630) at Bijapur, the domes are carried on pendentives consisting of arches crossing one another and projecting inwards, and their weight <WSD>counteracts</WSD> any thrust there may be in the dome. 
Meaning of the word marked with <WSD> tags:  To have a contrary or opposing effect or force on