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.
Mahi mahi, also called dolphinfish, is one of the fish that's lower in mercury, so even pregnant women can safely consume up to six 6-ounce servings per month. The calories in mahi mahi are comparable to those in halibut, haddock, flounder and cod; it has fewer calories than salmon, mackerel and tuna. Mahi mahi is also lower in heart-healthy omega-3 fats than these fish, with only 118 milligrams per 3-ounce serving.