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ready reckoner

noun

reckoner (def. 2).

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You may have read the word "simmer" in a recipe or two, but what does it really mean?
To cook in water that begins cold and then reaches a boil.
To stew in a sauce for a long time.
To cook in water, just below boiling temperature.
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Origin of ready reckoner

First recorded in 1750–60

Words nearby ready reckoner

read/write head, ready, readymade, ready-mix, ready money, ready reckoner, ready room, ready-to-wear, ready, willing, and able, ready-witted, reaffirm
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for ready reckoner

British Dictionary definitions for ready reckoner

ready reckoner

noun

a table of numbers used to facilitate simple calculations, esp one for applying rates of discount, interest, charging, etc, to different sums
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012