1 Reverse dictionary. Enter meanings to find the corresponding suffixes (e.g., searching with the word arm will locate the suffixes -humeral and -brachial).  Finding meanings. Enter a in the box and click the Search button.
Re: calorie vs. a food calorie. A food calorie is 1,000 chemistry calories. That did sound a little like a homework question.
Note, containing carbon is not sufficient for a compound to be considered organic! Look for both carbon and hydrogen. Organic and inorganic chemistry are two of the main disciplines of chemistry. An organic chemist studies organic molecules and reactions, while an inorganic chemistry focuses on inorganic reactions.