- Hydrosulphuric Adj
- Hydrosynoptic Adj
- Hydrotactic Adj
- Hydrotechnic Adj
- Hydrotechnical Adj
- Hydrotherapeutic Adj
- Hydrotherapeutical Adj
- Hydrothermal Adj
- Hydrothermic Adj
- Hydrotropic Adj
- Hydrotropical Adj
- Hydrous Adj
- Hydrovolumetric Adj
- Hydroxamic Adj
- Hydroxiacetic Adj
- Hydroxyalkyl Adj Noun
- Hydroxybenzoic Adj
- Hydroxybutyric Adj
- Hydroxyethyl Adj Noun
- Hydroxypropyl Adj Noun
- Hyetal Adj
- Hygienic Adj
- Hygienical Adj
- Hygric Adj
- Hygrometric Adj
- Hygrophilous Adj
- Hygroscopic Adj
- Hygroscopical Adj
- Hygrothermal Adj
- Hylic Adj
- Hylophagous Adj
- Hymenal Adj
- Hymeneal Adj Noun
- Hymenopteral Adj
- Hymenopteran Noun Adj
- Hymenopterous Adj
- Hymnal Adj Noun
- Hyodeoxycholic Adj
- Hyodesoxycholic Adj
- Hyoepiglottic Adj
- Hyoepiglottidean Adj
- Hyoglossal Adj
- Hyoid Adj Noun
- Hyoidal Adj
- Hyoidean Adj
- Hyomandibular Adj
- Hyopharyngeal Adj
- Hypabyssal Adj
- Hypacousic Adj
- Hypacusic Adj
- Hypaethral Adj
- Hypalgesic Adj
- Hypalgetic Adj
- Hyparchic Adj
- Hyparterial Adj
- Hypasthenuric Adj
- Hypautomorphic Adj
- Hypaxial Adj
- Hypaxonic Adj
- Hyped Adj