单词 sal-gem 释义 sal-gem Now rare or Obs.|sldm|Also 4–9 gemme, 5–8 -geme, 7 gemm; and in L. form.[ad. med.L. sal gemma or gemm, lit. ‘gem-like salt’. Cf. F. sel gemme.]Native chloride of sodium; rock-salt.c1325[see sal-ammoniac].c1450M.E. Med. Bk. (...