pilotchart
nounUK /ˈpaɪlət tʃɑːt/
US /ˈpaɪlət tʃɑːrt/
A special map that sailors use to plan a safe trip on the sea.
The captain checked the pilotchart before the ship left the harbor.
OTHER MEANINGS
2. A chart showing winds, currents, and weather patterns for ships.
The pilotchart warned of strong currents near the coast.
3. A guide or plan that helps someone find their way.
She used the schedule as a pilotchart for her busy week.
4. A chart used by pilots to plan flight paths.
The pilot studied the pilotchart to avoid stormy areas.