Definition of "growing-pains" [growing-pains]

• Various indefinite pains about the joints, especially of the lower extremities, in children and adolescents.

The Century Dictionary (Public Domain)

• ""It is impossible to say whether this indicates the incipient decline of an art whose talent flowered remarkably early or simply that every new departure implies growing-pains.""
• "Baby steps, really, in an uphill movement still in growing-pains phase."
• "Thus far, the marketing has been timid and unsure of who the audience is---it feels exclusive, like a growing-pains indie."