international code of signals
81mail flag — Naut. 1. a flag of the International Code of Signals symbolizing the letter Y, flown alone by a ship to indicate that it is carrying mail: a square flag with red and yellow diagonal stripes. 2. any of various other flags indicating that a ship is …
82negative flag — the letter N in the International Code of Signals, signifying no when flown by itself: a square flag having four rows of alternate blue and white squares. [1905 10] * * * …
83quarantine flag — Naut. a yellow flag, designating the letter Q in the International Code of Signals: flown by itself to signify that a ship has no disease on board and requests a pratique, or flown with another flag to signify that there is disease on board ship …
84red flag — 1. the symbol or banner of a left wing revolutionary party. 2. a danger signal. 3. something that provokes an angry or hostile reaction: The talk about raising taxes was a red flag to many voters. 4. Also called powder flag. Naut. a red burgee,… …
85blue peter — blue′ pe′ter n. naut. navig. a blue flag with a white square in the center, designating the letter P in the International Code of Signals, flown by a vessel in port to indicate its imminent departure • Etymology: 1815–25 …
86blue peter — /blu ˈpitə / (say blooh peetuh) noun a blue flag with a white square in the centre, symbol of the letter P in the International Code of Signals, hoisted by a ship as a signal that it is ready to leave port. {blue + peter, originally repeater} …
87signal — A means of communication, as between vessels at sea or between a vessel and the shore. The international code of signals for the use of all nations assigns arbitrary meanings to different arrangements of flags or displays of lights …
88mail flag — noun : a flag displayed by a ship carrying mail * * * Naut. 1. a flag of the International Code of Signals symbolizing the letter Y, flown alone by a ship to indicate that it is carrying mail: a square flag with red and yellow diagonal stripes. 2 …
89affirmative flag — Naut. a flag having five horizontal stripes, blue, white, red, white, and blue, from top to bottom, signifying yes : letter C in the International Code of Signals …
90negative flag — the letter N in the International Code of Signals, signifying no when flown by itself: a square flag having four rows of alternate blue and white squares. [1905 10] …
