bocal

A curved, tapered metal tube which connects the reed of several double reed woodwind instruments (such as the cor anglais, bassoon, and contrabassoon) to the rest of the instrument.

A cylindrical glass vessel with a short wide neck.

Something very similar to Faust’s cell presented itself to the view of Jehan when he ventured his head within the half-open door. It was a similar gloomy, dim-lighted nook. There was also a large fauteuil and a large table; compasses; alembics; skeletons of animals suspended from the ceiling; a sphere rolling on the floor; hippocéphales promiscuously with bocaux in which were quivering leaves of gold; […]

One of the biggest features of this Grasse perfume industry is the distillation of these essences in their simple forms, selling them in bulk, in demijohns and estagons and bocaux, to the wholesale perfume makers, the fabricators and the second fusion operators throughout the worid.