Definition of well-grown in US English:

well-grown

adjective

  • 1That shows considerable or satisfactory growth or development.

  • 2Shipbuilding. Of a knee or other piece of timber used in the construction of a ship: that has the grain of the wood following the shape required. Now historical and rare.

Origin

Late Middle English; earliest use found in Geoffrey Chaucer (c1340–1400), poet and administrator. From well + grown.

Pronunciation

well-grown

/ˌwɛlˈɡrəʊn/