# Dominical letter

## Definitions

• Webster's Revised Unabridged Dictionary
• Dominical letter the letter which, in almanacs, denotes Sunday, or the Lord's day (dies Domini). The first seven letters of the alphabet are used for this purpose, the same letter standing for Sunday during a whole year (except in leap year, when the letter is changed at the end of February). After twenty-eight years the same letters return in the same order. The dominical letters go backwards one day every common year, and two every leap year; e. g., if the dominical letter of a common year be G, F will be the dominical letter for the next year. Called also Sunday letter. Cf. Solar cycle, under Cycle n.
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Chambers's Twentieth Century Dictionary
• Dominical letter one of the first seven letters of the alphabet, used in calendars to mark the Sundays throughout the year
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## Etymology

Chambers's Twentieth Century Dictionary
Low L. dominicalis—L. dominicusdominus, lord, master.

## Usage

### In literature:

"More Letters of Charles Darwin" by Charles Darwin
But for all Cromwell's nose wears the dominical letter, compared to Manchester he is but like the vigils to an holy-day.
"Character Writings of the 17th Century" by Various
The dominical letter of that year, which was the tenth of the cycle, was consequently B.
"Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4" by Various
His indiscretion in the matter of the famous "baneful domination" letter is absolutely incomprehensible.
"The Story of the Upper Canada Rebellion, Volume 1" by John Charles Dent
Domine Selyns, in a letter to Rev.
"Journal of Jasper Danckaerts, 1679-1680" by Jasper Danckaerts
A good letter writer is dominated by his attention to one individual.
"Browning and the Dramatic Monologue" by S. S. Curry
Dominical letter, one of the first seven letters of the alphabet used to denote the Sabbath or Lord's day.
"Our Calendar" by George Nichols Packer
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### In news:

To Husker fans, the 'unforgettable character' was the first true freshman lineman to letter at NU in the modern era and a linchpin of the dominant rushing attacks in the late '80s.
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### In science:

In our Letter we design a system (i.e. open multi-terminal AB setup) in which the ﬁrst-order tunneling process dominates, and we carry out a study of rT in such a system. (2) They comment that our Eq.(4) is wrong, as it relies on the single-particle formalism.
Testing Parity with Atomic Radiative Capture of $\mu^-$