| AUTHORITATIVELY | • authoritatively adv. In an authoritative manner, being worthy of trust. • AUTHORITATIVE adv. having or proceeding from authority. |
| CHELUVIATION | • cheluviation n. Eluviation caused by the chelating action of acids in the environment. • CHELUVIATION n. the leaching of iron and aluminium oxides from soils, esp. those planted with conifers and heaths. |
| CHELUVIATIONS | • CHELUVIATION n. the leaching of iron and aluminium oxides from soils, esp. those planted with conifers and heaths. |
| CLAVICYTHERIUM | • clavicytherium n. (Music) A harpsichord in which the soundboard and strings are mounted vertically facing the player. • CLAVICYTHERIUM n. a harpsichord-like musical instrument. |
| EXHAUSTIVELY | • exhaustively adv. In an exhaustive manner. • EXHAUSTIVE adv. testing all possibilities or considering all elements. |
| EXTRAVEHICULAR | • extravehicular adj. Relating to, on happening in, the space outside a vehicle, especially a spacecraft in space. • extra-vehicular adj. Alternative spelling of extravehicular. • EXTRAVEHICULAR adj. taking place outside a vehicle (as a spacecraft). |
| HALLUCINATIVE | • hallucinative adj. Relating to hallucination; hallucinatory. • HALLUCINATIVE adj. tending to produce hallucination, also HALLUCINATORY. |
| HELVETIUM | • helvetium n. Proposed name for the chemical element astatine. • HELVETIUM n. a superseded name for the element astatine. |
| HELVETIUMS | • HELVETIUM n. a superseded name for the element astatine. |
| HUMILIATIVE | • humiliative adj. (Grammar) Serving to lower one’s own or another’s status. • humiliative n. (Grammar) A construct that serves to lower one’s own or another’s status. • HUMILIATIVE adj. serving to humiliate, also HUMILIATORY. |
| HYPERINVOLUTION | • HYPERINVOLUTION n. extreme involution. |
| HYPERVIRULENT | • hypervirulent adj. Extremely virulent. • HYPERVIRULENT adj. extremely virulent. |
| MULTIWAVELENGTH | • multiwavelength adj. Involving, or composed of, multiple wavelengths. • multi-wavelength adj. Alternative spelling of multiwavelength. • MULTIWAVELENGTH adj. extending over many wavelengths. |
| ULTRAHEAVIER | • ULTRAHEAVY adj. very very heavy. |
| ULTRAHEAVIEST | • ULTRAHEAVY adj. very very heavy. |
| ULTRAHEAVY | • ultraheavy adj. (Physics, chemistry) Describing any atom that has a very large atomic weight; especially those that… • ultraheavy adj. Extremely or exceedingly heavy; of utmost heaviness. • ULTRAHEAVY adj. very very heavy. |