chaff


Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Idioms, Wikipedia.

chaff

the dry membranous bracts enclosing the flowers of certain composite plants

Chaff

 

the resulting waste products from threshing and cleaning the grains of cereal and leguminous plants. It consists of hulls, bits of spikelets, ground leaves, underweight grains, and the seeds of weeds. The nutritional value of chaff is higher than that of straw. One kg of wheat chaff contains 0.43 feed units and 26 g of digestible protein; 1 kg of rye chaff contains 0.40 feed units and 21 g of digestible protein; and 1 kg of oat chaff contains 0.44 feed units and 23 g of digestible protein.

Chaff may be used in mixtures with succulent feeds, wet mash, molasses, and other slops for fattening cattle, horses, and swine. When grain is harvested by combine, the chaff is mixed with straw and is thus used as feed for animals.

chaff

[chaf]
(agriculture)
Seed coverings and small stem pieces which are separated from grass and grain seeds in threshing or processing.
(ordnance)
Thin, flat pieces of metal foil, plain or backed, designed to act as a countermeasure against enemy radar when released into the atmosphere.

chaff

The general name applied to radar confusion refractors, which consists of thin, narrow, metallic strips of various lengths and frequency responses fired into or dropped through the atmosphere in order to deflect radar signals and so prevent detection by the enemy radar. These radar-reflective particulate matter or dipoles are sized to known or suspected enemy wavelengths. This is the earliest form of electronic warfare. Also known as windows.
References in periodicals archive ?
This step is repeated until the number of chaff points reaches the required number to fill the matrix with the free area.
We thought it would be possible to have fighters drop chaff ahead of the lead bombers.
She admits that watching Robertson every day can get tedious, but occasionally among the chaff is a kernel of wheat so pure that it could bring tears to a baker's eye.
Curated by New York gallerist Jeanne Greenberg Rohatyn, "Casino 2001" included works by sixty artists, and the imbalance between chaff and wheat was extreme.
The male figure on the left is separating the seed from the chaff.
Chemring makes chaff - a substance deployed from the back of slow-moving aircraft - which is designed to act as a decoy for enemy missiles.
An editor is someone who separates the wheat from the chaff and then prints the chaff.
The moisture in the chaff is the only water the mushroom spores receive during the time that they grow underground.
Johnson has been chief of the Rehabilitation Service and chaff and professor of Neurology at the University of Maryland School of Medicine in Baltimore since 1981.
The straw and chaff fell into a pile to become bedding and/or livestock feed.
Story's title refers to the unfortunate results of being speared by a rye stalk -- or, as the film's final epigram puts it, "The chaff is gone, but the feeling remains.