e/Brainwave entrainment

Information
has gloss	eng: Brainwave entrainment or "brainwave synchronization," is any practice that aims to cause brainwave frequency to fall into step with a periodic stimulus having a frequency corresponding to the intended brain-state (for example, to induce sleep), usually performed with the use of specialized medical software. It depends upon a "frequency following" response, a naturally occurring phenomenon where the human brain has a tendency to change its dominant EEG frequency towards the frequency of a dominant external stimulus. Such a stimulus may be aural, as in the case of binaural or monaural beats and isochronic tones, or else visual, as with a dreamachine, a combination of the two with a mind machine, or even electromagnetic radiation.
lexicalization	eng: brainwave entrainment
instance of	(noun) the practice of medicine without the use of drugs; may involve herbal medicines or self-awareness or biofeedback or acupuncture alternative medicine

Meaning
Polish
has gloss	pol: Synchronizacja fal mózgowych (ang. Brainwave synchronization) – to hipotetyczny proces synchronizacji pracy dwóch półkul mózgu.
lexicalization	pol: Synchronizacja fal mózgowych
Portuguese
has gloss	por: Brainwave Syncronization também chamado de "Brainwave Entrainment" é uma forma de induzir a pessoa a um determinado estado cerebral com sons que estimulam o cérebro.
lexicalization	por: Brainwave synchronization