Geirfa Ymchwil
| Ymchwil/Ymchwilio | Research/to research | |
| Gwybodaeth | Information | |
| siartiau | charts | |
| graff | graph | |
| crynodeb | summary | |
| adroddiad | report | |
| papur | paper | |
| ystadegau | statistics | |
| canran | percentage | |
| cyhoeddi | publish | |
| darganfod | discover | |
| arsylwi | observe | |
| gwahaniaeth | difference | |
| newid | change | |
| arwyddocaol | significant | |
| canlyniad/canlyniadau | result/results | |
| gwerthuso | evaluate | |
| data | data | |
| adolygiad cymheiriaid | peer review | |
| cyfeirnod | reference | |
| cyfeiriadau | references | |
| abstract | abstract |