SYNONYMY NOTE: irritable implies quick excitability to annoyance or anger, usually resulting from emotional tension, restlessness, physical indisposition, etc.; , irascible, choleric are applied to persons who are hot-tempered and can be roused to a fit of anger at the slightest irritation; , splenetic suggests a peevish moroseness in one quick to ...
Quick Answer. A map direction symbol is called a compass rose, and a simple compass rose symbol may only depict the four cardinal directions of north, east, west and south. A compass rose has been used on charts, atlases and maps by navigators since the 14th century. A more detailed compass rose can show many other directions.
A compass is a navigational instrument that shows directions. The compass was invented by Chinese between the 2nd century BC and 1st century AD. It was first used in Feng Shui, the layout of buildings. By 1000 AD, navigational compasses were commonly used on Chinese ships, enabling them to navigate.