A wheelwright is  a craftsman who builds or repairs wooden wheels. The word is the combination of wheel and the archaic word wright, which comes from the Old English word wryhta, meaning a worker or maker.
It is advisable not to eat mercury-rich fish such as these during pregnancy.. Look out for fish that taste especially metallic, a sign of high mercury levels. Medium-mercury fish include Chilean sea bass, grouper, cod, Mahi Mahi, monkfish, and snapper. Low-mercury fish are the safest for pregnant women.
1 However, heat-treated or UHT pate is safe to eat, as long as it is not made from liver. 2  Don't eat raw fish or raw shellfish, such as oysters, when you're pregnant, as it may cause food poisoning. 3  Smoked salmon is considered safe to eat in pregnancy, as the curing process destroys listeria bacteria. So limit how much you eat of these fish to two portions a week. 2  Don't eat shark, swordfish and marlin, as these fish contain unsafe levels of mercury. 3  Tuna contains some mercury, too, so don't eat more than four medium-sized cans, or two fresh tuna steaks, a week. 4  Limit your caffeine intake to 200mg a day.