Noun
Any of the modern streams of Judaism outside the realms of Orthodox Judaism, especially those without doctrinal belief in a divinely authored Torah or immutable Talmudic law.
Hyponyms: Conservative Judaism, Reconstructionist Judaism, Reform Judaism
While Orthodox Judaism originated in Europe as a protest against Reform Judaism, the schism between the two groups eventually gave rise to a number of other Liberal Judaisms, so to speak, including Conservative and Reconstructionist Judaism.
Reform Judaism specifically.
Source: en.wiktionary.org