Language corner: as with other plants, the tree is masculine, ulivo (or olivo) while the fruit is feminine: oliva. From this term also a proper name comes: Olivio (f. Olivia).
Some technical terms:
spremitura= olive pressing
frantoio= oil mill
fiscola (or fiscolo)= special filters used for pressing oils, also the profession of "fiscolaio" existed
gramola= a steel tank where helical blades rotate.