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countable and uncountable, plural rhotacisms
An exaggerated use of the sound of the letter R. examples
(countable, phonology) A linguistic phenomenon in which a consonant changes into an R, such as Latin flos becoming florem in the accusative case; rhotacization.
Inability to pronounce the letter R; derhotacization. quotations examples
For example: r’s may become burrs or guttural grunts or w’s or l’s (rhotacism); […]
1970, Leland E. Hinsie, Robert Jean Campbell, Psychiatric Dictionary, Oxford University Press, page 711
From the analysis of Kana writings, hypothesizes that the inability to establish a stable… […] The correction of rhotacism by means of an electric vibrator.
1976: Deafness, Speech, and Hearing Publications, Inc., of Gallaudet College & the American Speech and Hearing Association, DSH Abstracts, volumes 16–17 (1976–1977), page 289 (Deafness Speech and Hearing Publications)
It is universally accepted that the rhotacism, a defective utterance of the /r/ sounds, is usually the last and most difficult American English consonant to correct functionally. / I use two methods to help correct the rhotacism.
2005: Bernard Fogel, PhD, CCC-SLP, Exercising the Rhotacism in Absence of Pathology (ADVANCE)