Chemestry vs. Chemistry: Which is Correct?

If you are looking for the correct spelling, here it is: Chemistry is the only correct spelling in standard English.

The word requires an "i" after the "m" (C-H-E-M-I-S-T-R-Y). Spelling it as "chemestry" with an "e" is universally considered a grammatical error in professional, academic, and casual writing. If you struggle with this word, you are not alone—it is one of the most frequently misspelled words in the American English language.

Notice how the base word "chemIst" keeps its "i" when forming "chemIstry." The letter "e" is never used in the middle of this word.

To understand why the "i" exists, we have to look at the word's construction. The word comes from the base word "chemist," which traces back to the Arabic word "al-kimiya" and the Greek word "chemeia," referring to the transmutation of metals.

When the suffix "-ry" (used to denote a practice, art, or science) is added to "chemist," the final "t" of "chemist" and the "r" of "-ry" blend together. To make the transition smooth and maintain the root's identity, the "i" from "chemist" is preserved. Therefore, to spell chemistry correctly, you must keep the "i".

Noah Webster, the father of American English spelling, intentionally simplified many words, but he left "chemistry" alone because it logically derived from "chemist" plus "-ry," and dropping the "i" would sever its connection to its root word.

• Organic chemistry
• Good chemistry
• Study chemistry
• Chemistry lab
• Brain chemistry
• Analytical chemistry

In daily conversation, "chemistry" is often used to describe romantic or social compatibility. For example, telling a friend, "We had great chemistry" means you felt a strong connection with someone. It is also heavily used by students complaining about difficult science classes.

• They had undeniable chemistry on their first date.
• We decided to stay friends because the chemistry wasn't there.
• She is majoring in chemistry at the university.
• Good chemistry is the foundation of a strong marriage.
• Organic chemistry is notoriously difficult for pre-med students.

In academic writing, "chemistry" is strictly used to describe the scientific discipline or the chemical composition of a subject. For instance, "The chemistry of the soil was analyzed." It highlights rigorous scientific study and molecular interactions.

• The chemistry lab is located in the science building.
• We are studying the chemistry of acids and bases.
• The professor explained the chemistry behind the reaction.
• Analytical chemistry requires extreme precision.
• The doctor explained the chemistry of the new drug.

In business contexts, "chemistry" is used metaphorically to describe team dynamics and corporate culture. Saying "The team has great chemistry" sounds much more professional than "The team gets along well." It implies a seamless, highly functional working relationship.

• The team's chemistry led to their championship victory.
• Good business chemistry is essential for a partnership.
• We need to hire someone who fits the office chemistry.
• The new manager ruined the team's chemistry.
• The corporate retreat was meant to build chemistry.