protoplanetary
/ˌprəʊtə(ʊ)ˈplanɪt(ə)ri/Astronomy
adjective
Of, relating to, or of the nature of a protoplanet.
Origin
1950s. From proto- + planetary, partly after Russian protoplanetnyj, and partly after protoplanet.
- marsh-light
- marsh lousewort
- marshmallow
- marsh mallow
- marshmallow roast
- marshmallowy
- marshman
- marsh marigold
- marsh melon
- marsh mutton
- marsh orchid
- marsh orchis
- marsh owl
- Marshpee
- marsh pink
- marsh rabbit
- marsh ragwort
- marsh-rocket
- marsh rose
- marsh rosemary
- marsh saxifrage
- marsh shrew
- marsh snail
- marsh sowthistle
- marsh spot