| CARTOGRAPHERS | • cartographers n. Plural of cartographer. • CARTOGRAPHER n. one who makes maps, also CHARTOGRAPHER. |
| ORTHOGRAPHERS | • orthographers n. Plural of orthographer. • ORTHOGRAPHER n. a correct speller. |
| PEREGRINATORS | • peregrinators n. Plural of peregrinator. • PEREGRINATOR n. someone who travels about. |
| PETROGRAPHERS | • petrographers n. Plural of petrographer. • PETROGRAPHER n. a practitioner of petrography. |
| SUPEREROGATOR | • SUPEREROGATOR n. one who does or performs more than is required. |
| ARTHROGRAPHIES | • arthrographies n. Plural of arthrography. • ARTHROGRAPHY n. the X-ray examination of a joint after injection of a contrast medium into the joint space. |
| CHARTOGRAPHERS | • CHARTOGRAPHER n. one who draws maps, also CARTOGRAPHER. |
| CRYPTOGRAPHERS | • cryptographers n. Plural of cryptographer. • CRYPTOGRAPHER n. a specialist in cryptography. |
| SUPEREROGATORS | • supererogators n. Plural of supererogator. • SUPEREROGATOR n. one who does or performs more than is required. |
| SUPEREROGATORY | • supererogatory adj. Pertaining to supererogation; doing more than is required, especially with reference to good works in… • SUPEREROGATORY adj. going beyond the call of duty; superfluous. |
| THERMOGRAPHERS | • thermographers n. Plural of thermographer. • THERMOGRAPHER n. one who uses a thermograph, an instrument for recording changes in temperature. |
| ARTERIOGRAPHIES | • arteriographies n. Plural of arteriography. • ARTERIOGRAPHY n. the radiographic visualization of an artery after injection of a radiopaque substance. |
| DAGUERREOTYPERS | • daguerreotypers n. Plural of daguerreotyper. • DAGUERREOTYPER n. one who develops daguerreotypes, also DAGUERREOTYPIST. |
| HISTORIOGRAPHER | • historiographer n. A scholar who studies historiography. • HISTORIOGRAPHER n. one who practises historiography, the study of writing history. |
| PREREGISTRATION | • preregistration n. An early registration, before the normal or traditional time, as with early online check-in at hotels. • preregistration n. Registration (of a study design) before a clinical trial (or any other type of scientific experiment)… • preregistration adj. Before registration. |