1. (cosmology) the theory that the solar system was formed by the gravitational accumulation of planetesimals

Type of: scientific theory

• penny pincher
• penny stock
• penny-farthing
• penny-pinch
• penny-pinching
• penny-wise
• pennycress
• pennyroyal
• pennyroyal oil
• pennyweight
• pennywhistle
• pennywort
• pennyworth
• Penobscot
• Penobscot Bay
• Penobscot River
• penoche
• penological
• penologist
• penology
• penoncel
• penpusher
• Pensacola
• pensile
• pension