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Anything that emits electromagnetic radiation. A distinction is made between point sources, compact sources, and extended sources.

(1) One side of a field effect transistor. See drain.

(2) (The Source) An online information service in McLean, VA, launched in 1979 and purchased by CompuServe in 1989.

(3) The HTML code (source code) of a Web page.

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Channel of sale that generated an order or customer. source evaluation is an essential part of direct marketing that enables marketers to concentrate their promotion expenditures on the best sources. Sources are evaluated not just by number of orders generated, but also in terms of profitability, taking into account the long-term purchase and payment history of each customer by source. Sources for magazine subscription orders include insert cards (see bind-in; blow-in), gifts, direct-mail promotions, white mail, subscription agents, and renewals. Sources may be broken into subsets by key codes that indicate the list, promotion campaign, package, or offer that generated an order from a particular source. See also key code; prior source.

Channel of sale that generated an order or customer. source evaluation is an essential part of direct marketing that enables marketers to concentrate their promotion expenditures on the best sources.

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noun

1. A point of origination: beginning, derivation, fount, fountain, fountainhead, mother, origin, parent, provenance, provenience, root¹, rootstock, spring, well¹. See start/end.
2. An acquaintance who is in a position to help: connection, contact. See connect.

n

Definition: beginning; point of supply
Antonyms: effect, end, result

[very common] In reference to software, source is invariably shorthand for ‘source code’, the preferred human-readable and human-modifiable form of the program. This is as opposed to object code, the derived binary executable form of a program. This shorthand readily takes derivative forms; one may speak of “the sources of a system” or of “having source”.

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n. 1. a person, thing, or activity from which intelligence information is obtained.

2. in clandestine activities, a person (agent), normally a foreign national, in the employ of an intelligence activity for intelligence purposes.

3. in interrogation activities, any person who furnishes intelligence information, either with or without the knowledge that the information is being used for intelligence purposes. A controlled source is in the employment or under the control of the intelligence activity and knows that the information is to be used for intelligence purposes. An uncontrolled source is a voluntary contributor of information and may or may not know that the information is to be used for intelligence purposes.

See the Introduction, Abbreviations and Pronunciation for further details.

Device that provides signal power or energy to a load.

(see Eruption) Location where igneous matter (lava and gases) erupts onto the surface; vent, fissure, volcano, etc.

(DOD) 1. A person, thing, or activity from which information is obtained. 2. In clandestine activities, a person (agent), normally a foreign national, in the employ of an intelligence activity for intelligence purposes. 3. In interrogation activities, any person who furnishes information, either with or without the knowledge that the information is being used for intelligence purposes. In this context, a controlled source is in the employment or under the control of the intelligence activity and knows that the information is to be used for intelligence purposes. An uncontrolled source is a voluntary contributor of information and may or may not know that the information is to be used for intelligence purposes. See also agent; collection agency.

IN BRIEF: A thing or place from which something comes.

Always being truthful is a source of happiness. Being honest with our neighbors is a source of happiness. — George Smith (1870-1951).

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abbr. for Stanford Online Universal Resource for Clones and Ests; a unified genomic resource for functional annotations, ontologies, and gene expression data.

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For a list of words related to source, see:

• Journalism - source: person supplying information to journalist
• Users and Abusers - source: one’s drug supplier; dealer
• Practice, Discipline, and Belief - source: point of origin; generative force

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See words rhyming with "source."

  See crossword solutions for the clue Source.

Dansk (Danish)
n. - kilde, udspring, kildeskrift, trykforlæg
v. tr. - spore
v. intr. - stamme fra

idioms:

• at source    fra kilden
• source language    udgangssprog, kildesprog

Nederlands (Dutch)
bron, oorsprong

Français (French)
n. - source, origine, cause de, origine de, (Journ) source, (Géog) source (d'une rivière), (Littérat) source
v. tr. - (Ind) se procurer
v. intr. - se procurer

idioms:

• at source    à la source
• source language    langue source (d'une traduction)

Deutsch (German)
n. - Quelle
v. - die Quelle angeben, (Waren) beziehen

idioms:

• at source    an der Quelle
• source language    Quellsprache

Ελληνική (Greek)
n. - πηγή, προέλευση, αφετηρία, αρχικό αίτιο
v. - προμηθεύω/-ομαι, εξασφαλίζω πηγή προμηθειών

idioms:

• at source    από την πηγή, από την αρχή
• source language    (Η/Υ) γλώσσα κώδικα

Italiano (Italian)
sorgente, origine

idioms:

• at source    all'origine

Português (Portuguese)
n. - origem, fonte, nascente de rio, fonte de informação
v. - originar

idioms:

• at source    na origem

Русский (Russian)
исток, родник, источник, документ, происхождение, исходный текст

idioms:

• at source    в истоке, в зародыше

Español (Spanish)
n. - fuente, origen
v. tr. - dar o rastrear la fuente de
v. intr. - contratar un fabricante o distribuidor

idioms:

• at source    en el punto de origen
• source language    idioma de origen

Svenska (Swedish)
n. - källa, upphov, ursprung
v. - stå till tjänst med resurser

中文（简体）(Chinese (Simplified))
来源, 根源, 水源, 获得, 从其他公司或国家购得零件及材料等, 开源

idioms:

• at source    在源头, 在始发地
• source language    被译语言

中文（繁體）(Chinese (Traditional))
n. - 來源, 根源, 水源
v. tr. - 獲得
v. intr. - 從其他公司或國家購得零件及材料等, 開源

idioms:

• at source    在源頭, 在始發地
• source language    被譯語言

한국어 (Korean)
n. - 출처, 근원, 이자나 배당을 지불하는 사람
v. tr. - 출전을 명시하다, ~로부터 습득하다
v. intr. - 공급지를 찾아내다

idioms:

• at source    원천에서

日本語 (Japanese)
n. - 水源, 源, 元, 原因, 情報源

idioms:

• at source    雇い主によって

العربيه (Arabic)
‏(الاسم) منبع, سبب, مصدر, أصل (فعل) ينبع‏

עברית (Hebrew)
n. - ‮ראשית, מוצא, מקור‬
v. tr. - ‮השיג (בייחוד מרכיבים) ממקור מסוים‬
v. intr. - ‮חתם חוזה עם יצרן או ספק, חיפש מידע על‬

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Some good "source" pages on the web: