Noun

(en noun)

Violent derangement of mind; madness; insanity.

Excessive or unreasonable desire; insane passion affecting one or many people; fanaticism.

* {{quote-magazine, date=2013-07-20, volume=408, issue=8845, magazine=(The Economist)

, title= The attack of the MOOCs , passage=Dotcom mania was slow in coming to higher education, but now it has the venerable industry firmly in its grip. Since the launch early last year of Udacity and Coursera, two Silicon Valley start-ups offering free education through MOOCs, massive open online courses, the ivory towers of academia have been shaken to their foundations.}}

(psychiatry) The state of abnormally elevated or irritable mood, arousal, and/or energy levels.

Noun

(-)

Food miraculously produced for the Israelites in the desert in the book of Exodus.

By extension, any good thing which comes into one's hands by luck or good fortune.

The sugary sap of the manna gum tree which oozes out from holes drilled by insects and falls to the ground around the tree.[http://www.museum.vic.gov.au/forest/plants/gum.html]

* 1966 , Bill Beatty, Tales of Old Australia , National Distributors, ISBN 1-86436-013-5, page 14, discussing old Australian foods

The icing on the cake was made from manna, which was gathered under the manna gums. Manna mixed with milk made a splendid icing.