Definition:-

• (in Greek mythology) a fire-breathing female monster with a lion's head, a goat's body, and a serpent's tail. (noun)
• A thing that is hoped or wished for but in fact is illusory or impossible to achieve. (noun)
• An organism containing a mixture of genetically different tissues, formed by processes such as fusion of early embryos, grafting, or mutation. (noun)
• A cartilaginous marine fish with a long tail, an erect spine before the first dorsal fin, and typically a forward projection from the snout. (noun)