Lemon oil comes from the Citrus limon tree, from the rind of the same lemon fruit that we eat. Citrus limon trees grow to 15 feet high and are thought to have originated in China and spread to Mediterranean regions.
Full Definition of ACRONYM. : a word (as NATO, radar, or laser) formed from the initial letter or letters of each of the successive parts or major parts of a compound term; also: an abbreviation (as FBI) formed from initial letters: initialism.
Acronymic Formations. An acronym is a word formed from the initial letters of a phrase. Some acronymic terms still clearly show their alphabetic origins (consider FBI), but others are pronounced like words instead of as a succession of letter names: thus NASA and NATO are pronounced as two syllable words.