| PETROGRAPHY | • petrography n. (Petrology) The branch of petrology that deals with the scientific description and classification of rocks. • petrography n. The art of writing on stone. • PETROGRAPHY n. the description and classification of rocks. |
| ELECTROGRAPH | • electrograph n. A machine used in gravure printing. • electrograph n. A recording electrometer; also, the graph produced by such a device. • electrograph n. (Historical) An instrument for the reproduction at a distance of pictures, maps, etc., by means of electricity. |
| PETROGRAPHER | • petrographer n. A person practicing petrography. • PETROGRAPHER n. a practitioner of petrography. |
| PETROGRAPHIC | • petrographic adj. Relating to petrographs. • petrographic adj. Relating to petrography. • PETROGRAPHIC adj. relating to petrography, also PETROGRAPHICAL. |
| SPECTROGRAPH | • spectrograph n. A machine for recording spectra, producing spectrograms. • SPECTROGRAPH n. an instrument for viewing a spectrum. |
| ELECTROGRAPHS | • electrographs n. Plural of electrograph. • ELECTROGRAPH n. an instrument for recording electrical potential. |
| ELECTROGRAPHY | • electrography n. Gravure printing. • electrography n. The recording of the electrical activity of part of the body. • ELECTROGRAPHY n. the use of an electrograph, an instrument for recording electrical potential. |
| PETROGRAPHERS | • petrographers n. Plural of petrographer. • PETROGRAPHER n. a practitioner of petrography. |
| PETROGRAPHIES | • petrographies n. Plural of petrography. • PETROGRAPHY n. the description and classification of rocks. |
| SPECTROGRAPHS | • spectrographs n. Plural of spectrograph. • SPECTROGRAPH n. an instrument for viewing a spectrum. |
| SPECTROGRAPHY | • spectrography n. (Physics, chemistry) The process of using a spectrometer to produce a spectrograph. • SPECTROGRAPHY n. the use of the spectrograph. |
| ELECTROGRAPHIC | • electrographic adj. Of or relating to a technology that translates pencil marks on paper into punched cards. • electrographic adj. Relating to electrically-powered signage that shows illuminated images. • ELECTROGRAPHIC adj. relating to electrography. |
| PETROGRAPHICAL | • petrographical adj. Alternative form of petrographic. • PETROGRAPHICAL adj. relating to petrography, also PETROGRAPHIC. |
| SPECTROGRAPHIC | • spectrographic adj. Of or pertaining to spectrography or spectrographs. • SPECTROGRAPHIC adj. relating to spectrography. |
| ELECTROGRAPHIES | • ELECTROGRAPHY n. the use of an electrograph, an instrument for recording electrical potential. |
| HYETOMETROGRAPH | • HYETOMETROGRAPH n. an instrument for recording rainfall. |
| SPECTROGRAPHIES | • SPECTROGRAPHY n. the use of the spectrograph. |