Difference between Diacritical Mark and Lambdacism

DIACRITICAL MARK vs LAMBDACISM: NOUN

A symbol in writing used with a letter to indicate a different pronunciation, stress, tone, or meaning, also called "tone marks" when used to indicate tones, e.g. in Vietnamese or pinyin (romanised Mandarin Chinese).
A mark added to a letter to indicate a special pronunciation

Pronunciation of other sounds, typically r, as l.
The use of the sound of l for that of r in pronunciation; lallation.
A defect in pronunciation of the letter l when doubled, which consists in giving it a sound as if followed by y, similar to that of the letters lli in billion.
A fault in speaking or in composition, which consists in too frequent use of the letter l, or in doubling it erroneously.
An imperfect pronunciation of the letter r, making it sound like l; lallation.
A too frequent use of words containing the letter l in speaking or writing. A Latin example appears in the following:
Speech defect involving excessive use or unusual pronunciation of the phoneme `l'

Metagraphy, Ecthlipsis, Pronunciation, Imparisyllabic, Orthographer, Dieresis, Acute accent, Transliteration, Punctuation, Grave accent, Iotacism, Pasigraphy, Metaphony, Vocoid, Diacritic

Metaplasm, Syllabism, Pronunciation, Speech disorder, Psellism, Minimal pair, Grave accent, Acute accent, Metaphony, Ecthlipsis, Vocoid, Orthoepy, Rhotacize, Rhotacism, Iotacism

Metagraphy, Ecthlipsis, Pronunciation, Imparisyllabic, Orthographer, Dieresis, Acute accent, Transliteration, Punctuation, Grave accent, Iotacism, Pasigraphy, Metaphony, Vocoid, Diacritic

Metaplasm, Syllabism, Pronunciation, Speech disorder, Psellism, Minimal pair, Grave accent, Acute accent, Metaphony, Ecthlipsis, Vocoid, Orthoepy, Rhotacize, Rhotacism, Iotacism

Whenever a combining diacritical mark is used in a document, the font in use should be tested to confirm that it is rendered acceptably.
It is an accent or other diacritical mark that is added to the previous character.