exoplanetologyWiktionary 原文构词拆分exoplanet词根/词干+-ology后缀Alternative form of -logy, used for phonological reasons when the preceding morpheme ends in certain consonant sounds. · (often humorous) added to an ordinary English word to create a name for a (possibly non-existent) field of study.词源说明From exoplanet + -ology.释义（英文）名词 Noun(astronomy) The search for, and study of, exoplanets