Meaning of “distil” - Learner’s Dictionary

distil

verb [ T ] (present participle distilling, past tense and past participle distilled) UK (US distill) uk us /dɪˈstɪl/

to make a liquid stronger or more pure by heating it until it changes into a gas and then changing it into a liquid again:

distilled water
distillation uk us /ˌdɪstɪˈleɪʃən/ noun [ U ]
distillery uk us /dɪˈstɪləri/ noun [ C ]

(Definition of “distil” from the Cambridge Learner’s Dictionary © Cambridge University Press)