What does “Erlenmeyer flask” mean in chemistry? Kumar Jeetendra | March 11, 2023 Laboratory flasks with a flat base, conical body, and cylindrical neck are known as Erlenmeyer flasks. They are also sometimes called conical flasks or titration flasks. Emil Erlenmeyer (1825-1909), a German chemist, developed it in 1860 and gave it his namesake. Whether you call it a conical flask, Erlenmeyer flask, or something else entirely, it’s …