If the sentence in question is a statement (ends with a period), I would probably "however" as your transition word.
It relates to the actual meaning which is "<span>a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change."</span>
Answer:
When attempting to decipher the meaning of a new word, it is often useful to look at what comes before and after that word. The surrounding words can give readers helpful context clues about the meaning and structure of the new word, as well as how it is used.
It is part of human nature. The drive to become rich, and to take the gold, is the whole reason that the dwarves started off in the first place. They were greedy for the wealth. They were blinded to the position that they were in. Even when Bilbo took the Arkenstone Thorin didn't pay attention, and turned his back on him.
