the number three; 3

pointed; tapering; sharp at the tip

(bound form) an evergreen tree (Cunninghamia lanceolata) used for timber

A type of organic compound formed by the reaction of an alcohol and an acid with the loss of water. Low molecular weight esters are typically fragrant liquids used as solvents or flavorings, while high molecular weight esters are solids or thick liquids found in fats and oils.

(chemistry) a substance that can react with an acid to form a salt, such as a compound that releases hydroxide ions in water, accepts protons, or donates electron pairs