different between fidelity vs faithful

English

Etymology

15th century, from Middle English [Term?], from Middle French fidélité, from Latin fid?lit?s, from fid?lis (“faithful”), from fid?s (“faith, loyalty”) (English faith), from Proto-Indo-European *b?id?-, zero-grade of *b?eyd?- (“to command, to persuade, to trust”) (English bide). Doublet of fealty.

Pronunciation

• IPA^(key): /f??d?l.?.ti/, /fa??d?l.?.ti/

Noun

fidelity (countable and uncountable, plural fidelities)

1. Faithfulness to one's duties.

2. Loyalty to one's spouse or partner, including abstention from extramarital affairs.
3. Accuracy, or exact correspondence to some given quality or fact.
4. The degree to which a system accurately reproduces an input.
   • 2003, Proceedings of the Twenty-ninth International Conference on Very Large Databases, Berlin, Germany, 9-12 September, 2003, page 58:

     By placing them closer to the source, we can reduce the number of messages in the system and this in turn is likely to improve the fidelity of the system.

Quotations

• 2004, High-Fidelity Medical Imaging Displays (Aldo Badano, Michael J. Flynn, Jerzy Kanicki, ?ISBN
• 2008, David L. Nelson, Michael M. Cox, Absolute Ultimate Guide for Lehninger Principles of Biochemistry ?ISBN, page S-305:

  The isoleucyl-tRNA synthetase has a proofreading function that ensures the fidelity of the aminoacylation reaction, but the histidyl-tRNA synthetase lacks such a proofreading function.

Antonyms

• infidelity

Derived terms

• fidelitous
• fidelity bond
• high fidelity

Related terms

• affidavit
• bide
• faith

Translations

Further reading

• fidelity in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• fidelity in The Century Dictionary, New York, N.Y.: The Century Co., 1911.

English

Alternative forms

• faithfull (archaic)

Etymology

From Middle English feithful, equivalent to faith +? -ful.

Pronunciation

• IPA^(key): /?fe??.f?l/

Adjective

faithful (comparative faithfuler or more faithful, superlative faithfulest or most faithful)

1. Loyal; adhering firmly to person or cause.

2. Having faith.
   • 2009, Paul Lakeland, Church: Living Communion (page 162)

     The application of the old discipline, say the conservatives, would probably produce a smaller but more faithful Church.

3. Reliable; worthy of trust.

4. Consistent with reality.

5. Engaging in sexual relations only with one's spouse or long-term sexual partner.
   • 1976, "Missouri Breakers"[1]

     She wanted to be free to explore casual affairs, but her man had to be faithful .

6. (mathematics) Injective in specific contexts, e.g. of representations in representation or functors in category theory.

Derived terms

• faithfully
• faithfulness

Translations

See also

• go to the wall for someone
• stand by
• true

Noun

faithful (plural faithfuls)

1. (in the plural) The practicing members of a religion or followers of a cause.

2. Someone or something that is faithful or reliable.