spiny lobster: large edible marine crustacean having a spiny carapace but lacking the large pincers of true lobsters
lobster: any of several edible marine crustaceans of the families Homaridae and Nephropsidae and Palinuridae
tetanus immunoglobulin: sterile solution of globulins derived from the blood plasma of a person who has been immunized for tetanus; provides short-term immunization against tetanus in cases of possible exposure to the tetanus bacillus