Anagrams of: ULTRAMARATHONS

• A running race over a distance longer than 42.195 km, the length of a standard marathon.

• a dusty wind from the Sahara that blows toward the western coast of Africa during the winter

• any long and arduous undertaking

• a battle in 490 BC in which the Athenians and their allies defeated the Persians

• a footrace of 26 miles 385 yards

• a dusty wind from the Sahara that blows toward the western coast of Africa during the winter

• seed of amaranth plants used as a native cereal in Central and South America

• any of various plants of the genus Amaranthus having dense plumes of green or red flowers; often cultivated for food

• any long and arduous undertaking

• a battle in 490 BC in which the Athenians and their allies defeated the Persians

• a footrace of 26 miles 385 yards

• seed of amaranth plants used as a native cereal in Central and South America

• any of various plants of the genus Amaranthus having dense plumes of green or red flowers; often cultivated for food

• large egg-shaped structures of grey matter that form the dorsal subdivision of the diencephalon

• A bond with an extremely short term, typically less than a year

• Very short.

• Extremely short in duration, typically on the femtosecond scale

• (of a wave) Having a wavelength of between 1 and 10 metres

• Having a very short term of investment, typically less than a year