brimstone 2303 # Expanded Dictionary Study brimstone 2303 # theion {thi'-on}; probably neuter of 2304 (in its original sense of flashing); sulphur: -- {brimstone}.[ql brimstone 2306 # theiodes {thi-o'-dace}; from 2303 and 1491; sulphur-like, i.e. sulphurous: -- {brimstone}.[ql ***. theleo. See 2309.[ql ~~~~~~