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or by-prod·uct  (bī′prŏd′əkt)
1. Something produced in the making of something else.
2. A secondary result; a side effect.


1. a secondary or incidental product of a manufacturing process
2. a side effect


1. a secondary or incidental product, as in a process of manufacture.
2. the result of another action.


Something produced in the process of making something else. For example, when plants produce carbohydrates by photosynthesis, oxygen is released as a by-product: Asphalt and paraffin are by-products of the process of refining crude oil into gasoline.
ThesaurusAntonymsRelated WordsSynonymsLegend: - a secondary and sometimes unexpected consequence
consequence, effect, result, upshot, outcome, event, issue - a phenomenon that follows and is caused by some previous phenomenon; "the magnetic effect was greater when the rod was lengthwise"; "his decision had depressing consequences for business"; "he acted very wise after the event"
epiphenomenon - a secondary phenomenon that is a by-product of another phenomenon - a product made during the manufacture of something else
product, production - an artifact that has been created by someone or some process; "they improve their product every year"; "they export most of their agricultural production"


[ˈbaɪˌprɒdəkt] N (Chem etc) → subproducto m, derivado m (fig) → consecuencia f, resultado m


[ˈbaɪˌprɒdʌkt] n (Chem) → sottoprodotto (fig) → conseguenza


(bai) preposition
1. next to; near; at the side of. by the door; He sat by his sister.
2. past. going by the house.
3. through; along; across. We came by the main road.
4. used (in the passive voice) to show the person or thing which performs an action. struck by a stone.
5. using. He's going to contact us by letter; We travelled by train.
6. from; through the means of. I met her by chance; by post.
7. (of time) not later than. by 6 o'clock.
8. during the time of.
9. to the extent of. taller by ten centimetres.
10. used to give measurements etc. 4 metres by 2 metres.
11. in quantities of. fruit sold by the kilo.
12. in respect of. a teacher by profession.
1. near. They stood by and watched.
2. past. A dog ran by.
3. aside; away. money put by for an emergency.
ˈbygones: let bygones be bygones
to forgive and forget past causes of ill-feeling.
ˈbypass noun
a road which avoids an obstruction or a busy area. Take the bypass round the city.
to avoid (a place) by taking such a road.
ˈby-product noun
something obtained or formed during the making of something else. Coal tar is a by-product of the process of obtaining gas from coal.
ˈbystander noun
a person who watches but does not take part.
by and by
after a short time. By and by, everyone went home.
by and large
mostly; all things considered. Things are going quite well, by and large.
by oneself
1. alone. He was standing by himself at the bus-stop.
2. without anyone else's help. He did the job (all) by himself.
by the way
incidentally. By the way, have you a moment to spare?

by is used for forms of transport: by train ; by aeroplane ; by land ; by sea


n. subproducto.
References in periodicals archive ?
People with hereditary tyrosinemia type 1 (HT-1) have problems breaking down an amino acid called tyrosine, which can result in toxic by-products being formed and accumulating in the body.
The company said the modification will turn food production by-products into energy and will also lead to improved air quality in the area.
TEHRAN (FNA)- Managing director of the National Iranian Gas Company (NIGC) said that following removal of sanctions and the increase of refineries' output, the firm is determined to raise its presence in the global market of gas by-products.
Trotters, headquartered in the UAE, is an integrated petrochemical by-products and used lube oil processing, trading and logistics company.
Managing animal by-products is compulsory under the European Union's Regulation (EC) 1069/2009.
The research paper by Al Maimani and Al Kindi investigated ways to reduce the emission of hydrogen and carbon dioxide, which are the main by-products in ammonia production.
CONCERNED authorities will have to determine the types of oil by-products that are banned from being exported in their subsidised prices.
Previous reports showed that tea by-products produced by the beverage industry contained high crude protein (CP, 220 to 350 g/kg dry matter; DM) and tannins (50 to 80 g/kg DM) (Kondo et al.
If vegetables, grains, or other carb sources are used, we prefer to see them whole, rather than by-products (potatoes, rather than potato starch, for example).
36 of 2014, on criminalizing and combating the smuggling of the subsidized oil by-products, Bahrain National Oil and Gas Authority (NOGA) announced the preparation of the executive regulations drafts of the law, in preparation for submission to the competent authorities for approval.
Puerto Rico dairy farmers took to the streets Tuesday to protest against the Suiza Dairy processing plant for its alleged use of imported milk for its products, including certain branded milk and other by-products, reports News Is My Business (May 1, 2013):
Illegal slaughtered and processed meat destined for human consumption was seized and animal by-products were found in a Powys raid at the premises of Gareth Mills, formerly of Cefnbronllys Farm, Llanddewi, Llandrindod Wells.