| HEPTACHORDS | • heptachords n. Plural of heptachord. • HEPTACHORD n. a system of seven sounds. |
| HOPSCOTCHED | • hopscotched v. Simple past tense and past participle of hopscotch. • HOPSCOTCH v. to play hopscotch. |
| ICHTHYOPSID | • ICHTHYOPSID n. a member of the Ichthyopsida, amphibians, fishes and fishlike vertebrates, also ICHTHYOPSIDAN. |
| HYDROPATHICS | • hydropathics n. Plural of hydropathic. • HYDROPATHIC n. a hotel (with special baths, etc., and often situated near a spa) where guests can have hydropathic treatment. |
| ICHTHYOPSIDS | • ICHTHYOPSID n. a member of the Ichthyopsida, amphibians, fishes and fishlike vertebrates, also ICHTHYOPSIDAN. |
| PHOSPHATIDIC | • phosphatidic adj. (Chemistry) Of or pertaining to a phosphatide. • PHOSPHATIDIC adj. in phosphatidic acid, a type of acid. |
| WHIPSTITCHED | • whipstitched v. Simple past tense and past participle of whipstitch. • whip␣stitched v. Simple past tense and past participle of whip stitch. • WHIPSTITCH v. to sew with a whipstitch. |
| CATHODOGRAPHS | • cathodographs n. Plural of cathodograph. • CATHODOGRAPH n. a photograph created using X-rays. |
| HYPOTROCHOIDS | • hypotrochoids n. Plural of hypotrochoid. • HYPOTROCHOID n. the curve traced by a point on the radius, or radius produced, of a circle rolling within another circle. |
| ICHTHYOPSIDAN | • ICHTHYOPSIDAN n. a member of the Ichthyopsida, amphibians, fishes and fishlike vertebrates, also ICHTHYOPSID. |
| PHOTOCATHODES | • photocathodes n. Plural of photocathode. • PHOTOCATHODE n. a cathode that emits electrons when exposed to radiant energy and esp. light. |
| ARCHPRIESTHOOD | • archpriesthood n. (Ecclesiastical) The office of an archpriest. • ARCHPRIESTHOOD n. the office of archpriest. |
| HARPSICHORDIST | • harpsichordist n. One who plays the harpsichord. • HARPSICHORDIST n. one who plays the harpsichord. |
| HYPOCHONDRIAST | • hypochondriast n. (Dated) A hypochondriac. • HYPOCHONDRIAST n. a hypochondriac. |
| ICHTHYOPSIDANS | • ICHTHYOPSIDAN n. a member of the Ichthyopsida, amphibians, fishes and fishlike vertebrates, also ICHTHYOPSID. |
| ARCHPRIESTHOODS | • archpriesthoods n. Plural of archpriesthood. • ARCHPRIESTHOOD n. the office of archpriest. |
| CATHODOGRAPHERS | • CATHODOGRAPHER n. one who takes photographs created using X-rays. |
| CATHODOGRAPHIES | • CATHODOGRAPHY n. the taking of photographs created using X-rays. |
| HARPSICHORDISTS | • harpsichordists n. Plural of harpsichordist. • HARPSICHORDIST n. one who plays the harpsichord. |
| HYPOCHONDRIASTS | • hypochondriasts n. Plural of hypochondriast. • HYPOCHONDRIAST n. a hypochondriac. |