plural of pulse detonation engine

A bright red colour typically used on fire engines

A bright red colour typically used on fire engines

plural of fire engine red

plural of East-West engine

(Internet) The use of various techniques to improve a web site's ranking in search engines in the hopes of attracting more visitors.

plural of four-stroke engine

(Internet) Of a web page: designed so that automated search engine crawlers can easily index and categorize its contents.

plural of two-stroke engine

(rail transport, UK) A principle in railway signalling where only one train or locomotive is allowed to run on a section of single-track line, such as a branch line, at any one time.