Crossword Glossary
Completion requirements
Pori drwy'r eirfa gan ddefnyddio'r mynegai hwn
Arbennig | A | B | C | CH | D | DD | E | F | FF | G | NG | H | I | L | LL | M | N | O | P | PH | R | RH | S | T | TH | U | W | Y | Y CYFAN
O
orbitThe curved path of a celestial object around a star, planet, or moon | |
OxygenByproduct of photosynthesis released into the atmosphere. | |