| BLOODTHIRSTIEST | • bloodthirstiest adj. Superlative form of bloodthirsty: most bloodthirsty. • BLOODTHIRSTY adj. eager for bloodshed. |
| ELEUTHERODACTYL | • ELEUTHERODACTYL n. of birds, having the hind toe free. |
| HETERODACTYLOUS | • heterodactylous adj. (Zoology) Having the first and second toes turned backward, as in the trogons. • HETERODACTYLOUS adj. having the first and second toes turned backwards, as in trogons, and not the first and fourth as in parrots. |
| HYDROSTATICALLY | • hydrostatically adv. In a hydrostatic manner. • hydrostatically adv. With regard to hydrostatics. • HYDROSTATICAL adv. of or relating to fluids at rest or to the pressures they exert or transmit, also HYDROSTATIC. |
| HYDROXYLAPATITE | • hydroxylapatite n. Alternative spelling of hydroxyapatite. • HYDROXYLAPATITE n. a mineral of the apatite group that is rare in the ground but is the principal inorganic constituent of tooth enamel and bone. |
| ICHTHYODORULITE | • ichthyodorulite n. (Zoology) One of the spiny plates found on the back and tail of certain skates. • ichthyodorulite n. (Geology) A fossil fish-spine found in stratified rock. • ICHTHYODORULITE n. a fossilised fish-spine, also ICHTHYODORYLITE. |
| ICHTHYODORYLITE | • ICHTHYODORYLITE n. a fossilised fish-spine, also ICHTHYODORULITE. |
| LABYRINTHODONTS | • labyrinthodonts n. Plural of labyrinthodont. • LABYRINTHODONT n. an extinct amphibian, so called from a mazy pattern on a section of its teeth. |
| NORTHEASTWARDLY | • northeastwardly adv. Towards the northeast. • NORTHEASTWARDLY adv. in a northeasterly direction. |
| NORTHWESTWARDLY | • northwestwardly adv. Towards the northwest. • NORTHWESTWARDLY adv. NORTHWESTWARD. |
| ORTHODONTICALLY | • orthodontically adv. By orthodontic means. • ORTHODONTIC adv. relating to orthodontics, the rectification of crookedness in the teeth. |
| OTHERWORLDLIEST | • OTHERWORLDLY adj. of, relating to, or resembling that of a world other than the actual world, also OTHERWORLDISH. |
| PHOTOELECTRODES | • photoelectrodes n. Plural of photoelectrode. • PHOTOELECTRODE n. an electrode which can exhibit photoelectricity. |
| POLYARTHRITIDES | • polyarthritides n. Plural of polyarthritis. • POLYARTHRITIS n. arthritis affecting several joints. |
| PTERIDOPHILISTS | • PTERIDOPHILIST n. a fern-lover. |
| SOUTHWESTWARDLY | • southwestwardly adv. Toward the southwest. • SOUTHWESTWARDLY adv. in a southwesterly direction. |
| STADTHOLDERATES | • stadtholderates n. Plural of stadtholderate. • STADTHOLDERATE n. the office of stadtholder, also STADHOLDERATE, STADHOLDERSHIP, STADTHOLDERSHIP. |
| STADTHOLDERSHIP | • stadtholdership n. (Historical) The office or rank of a stadtholder. • STADTHOLDERSHIP n. the office of stadtholder, also STADHOLDERATE, STADHOLDERSHIP, STADTHOLDERATE. |
| TETARTOHEDRALLY | • TETARTOHEDRAL adv. having one fourth the number of planes required by complete symmetry. |
| THERMOREGULATED | • thermoregulated v. Simple past tense and past participle of thermoregulate. • THERMOREGULATE v. to regulate by means of heat. |