The term 'Bottle Model' refers to a type of shipbuilding technique that was popular in the 18th and 19th centuries. The technique involved constructing a wooden SHIP by assembling a series of pre-made sections, or 'bottles', which were then joined together. This method allowed ships to be built quickly and efficiently, and was used to construct many of the ships that sailed during this period. The crossword solution for this term is 'SHIP', which is a four-letter word that describes a large vessel designed for transportation by water.