13-Letter Words That End With: TING

• To introduce a hydroxyl group into a compound

• To form a carboxyl group by introduction of carbon dioxide

• To react with a carboxylic acid

• not quite exact or correct

• very close in resemblance

• located close together

• be close or similar

• judge tentatively or form an estimate of (quantities or time)

• pledge without delivery or title of possession

• to believe especially on uncertain or tentative grounds

• someone who writes plays

• remove oxygen from (water)

• clear out the chest and lungs

• discharge (phlegm or sputum) from the lungs and out of the mouth

• bring to a chemical stasis or equilibrium

• bring into balance or equilibrium

• the act of conducting a controlled test or investigation

• the testing of an idea

• a venture at something new or different

• to conduct a test or investigation

• try something new, as in order to gain experience