In this article, we will look at two types of crabs, namely the Opilio crab and the Bairdi crab, both of which belong to the family of crabs, but owing to certain important differences, they are far from same. Chionoecetes opilio.The Bairdi crab, also known as tanner crab or Chionoecetes Bairdi is a type of crab that is found in the Bering Sea. They are very similar to Opilio crabs which are known as Chionoecetes Opilio and it can be extremely difficult to differentiate between the two.n this article, we will look at two types of crabs, namely the Opilio crab and the Bairdi crab, both of which belong to the family of crabs, but owing to certain important differences, they are far from same. Chionoecetes opilio.
Medical Definition of sacroiliac joint. : the joint or articulation between the sacrum and iliumâcalled also sacroiliac, sacroiliac articulation.
Medical Definition of SODIUM. : a silver white soft waxy ductile element of the alkali metal group that occurs abundantly in nature in combined form and is very active chemicallyâsymbol Na; see element table. a silver-white soft waxy ductile element of the alkali metal group that occurs abundantly in nature in combined form and is very active chemically â see element table. See sodium defined for English-language learners. See sodium defined for kids.