letterwise en · ADJ
Etymology
From letter + -wise.
Meanings
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(not-comparable) In terms of letters of the alphabet.
[…] an encryption algorithm with multiple usage of a secret key for the letterwise encryption of prefixes […]
2008, Joachim Biskup, Security in Computing Systems: Challenges, Approaches and Solutions, page 410:Skillful readers' processing of text seems far too fast and efficient to be based on letterwise processing of its print.
1994, Marilyn Jager Adams, Beginning to Read: Thinking and Learning About Print, page 105: