| HYETOMETROGRAPH | • HYETOMETROGRAPH n. an instrument for recording rainfall. |
| PETROGRAM | • petrogram n. (Archaeology) A painting on rock, especially one made in prehistoric times. • PETROGRAM n. a picture on stone. |
| PETROGRAMS | • petrograms n. Plural of petrogram. • PETROGRAM n. a picture on stone. |
| PETROGRAPHER | • petrographer n. A person practicing petrography. • PETROGRAPHER n. a practitioner of petrography. |
| PETROGRAPHERS | • petrographers n. Plural of petrographer. • PETROGRAPHER n. a practitioner of petrography. |
| PETROGRAPHIC | • petrographic adj. Relating to petrographs. • petrographic adj. Relating to petrography. • PETROGRAPHIC adj. relating to petrography, also PETROGRAPHICAL. |
| PETROGRAPHICAL | • petrographical adj. Alternative form of petrographic. • PETROGRAPHICAL adj. relating to petrography, also PETROGRAPHIC. |
| PETROGRAPHIES | • petrographies n. Plural of petrography. • PETROGRAPHY n. the description and classification of rocks. |
| 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. |
| RETROGRADATION | • retrogradation n. Motion in a retrograde manner. • retrogradation n. Decline, degradation. • retrogradation n. (Chemistry) A reaction that takes place in gelatinized starch when the amylose and amylopectin chains… |
| RETROGRADATIONS | • retrogradations n. Plural of retrogradation. • RETROGRADATION n. the act of retrograding. |
| RETROGRADE | • retrograde adj. Directed or moving backwards in relation to the normal or previous direction of travel; retreating. • retrograde adj. Reverting to an inferior or less developed state; declining, regressing. • retrograde adj. Of the order of something: inverse, reverse. |
| RETROGRADED | • retrograded v. Simple past tense and past participle of retrograde. • RETROGRADE v. to cause to go back. |
| RETROGRADELY | • retrogradely adv. (Sciences) With a backward motion. • RETROGRADE adv. going backwards. |
| RETROGRADES | • retrogrades n. Plural of retrograde. • RETROGRADE v. to cause to go back. |
| RETROGRADING | • retrograding v. Present participle of retrograde. • RETROGRADE v. to cause to go back. |