名詞 lallation:

1. defective articulation of the `l' phoneme or the phoneme `r' is pronounced as `l'
2. gibberish resembling the sounds of a baby
   同義詞：babble, babbling

lal.la.tion

n.Linguistics （名詞）【語言學】
The substitution of the phoneme /l/ for /r/ or the mispronunciation of (l).
l的錯誤發(fā)音：錯把音發(fā)成r，或者的錯誤發(fā)音

來源：
Latin lall3re lall3t- [to sing a lullaby]
拉丁語 lall3re lall3t- [唱催眠曲]
-ation
-ation