Types of kidney cysts. There are two known types of kidney cysts, the first is Polycystic Kidney Disease (PKD) which is a genetic disorder of unknown causes and the second type is due to impaired kidney function.
navigates; navigated; navigating. Learner's definition of NAVIGATE. 1. : to find the way to get to a place when you are traveling in a ship, airplane, car, etc. [no object] For thousands of years, sailors navigated by the stars.
Definition of travel for English Language Learners. : 1  to go on a trip or journey : to go to a place and especially one that is far away. : 2  to go through or over (a place) during a trip or journey. : 3  to move from one place to another.