1 (uncountable) The property of being mentally ill; mental disorders taken as a whole.  2006, R. Keith Sawyer, Explaining Creativity: The Science of Human Innovation, Oxford University Press US, ISBN 9780195161649, page 87:
Essay on Gulliver's change throughout Gulliver's Travels - Gulliverâs change throughout Gulliverâs Travels Throughput the book âGulliverâs Travelsâ by Jonathan Swift, the character Gulliver changes many times. During and after part two and four of the book a noticeable change in Gulliver starts to occur.
Gulliver makes himself a comb from the stumps of hair left after the king has been shaved. He also collects hairs from the king and uses them to weave the backs of two small chairs, which he gives to the queen as curiosities.