protoplanetary

adj — 2 senses

adj

Etymology From proto- + planetary and protoplanet + -ary.

Astronomy, Natural sciences, Planets Of or pertaining to a protoplanet.

Derived terms: proplyd, protoplanetary core, protoplanetary disc, protoplanetary disk, protoplanetary embryo, protoplanetary nebula, protoplanetary object
Related terms: inter-planetary, interplanetary, planet, planetary, post-planetary, postplanetary, pre-planetary, preplanetary, protoplanet
Coordinate terms: planetessimal, planetoid

adj

Etymology From protoplanetary nebula, from proto- + planetary nebula.

Relating to a stage in the life of a red giant star or its protoplanetary nebula during the star's final stages of life

Related terms: nebula, planet, planetary, planetary nebula, preplanetary, preplanetary nebula, protoplanetary nebula

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.