The story
From trajectory + -oid.
Etymology from Wiktionary, CC BY-SA 4.0.
trajectoid
Today it means: A solid shape that traces a periodic trajectory when rolled down a slope. Full definition →
Today it means: A solid shape that traces a periodic trajectory when rolled down a slope. Full definition →
From trajectory + -oid.
Etymology from Wiktionary, CC BY-SA 4.0.