pinecone /ˈpaɪnˌkoʊn/noun 2verb 1forms 4 noun2 •A conical seed-bearing structure produced on a pine tree. •The seed-bearing structure of any conifer, such as fir, spruce, cedar, etc. verb1 •To become bloated in a way that causes the fish's scales to flare out and resemble a pinecone. formspineconed · pineconeing · pineconing · pinecones