Part of a strawberry

• Fruit on a strawberry
• Small, one-seeded fruit, botanically
• Fruit of the buttercup
• Hard area of strawberry
• Hard, dry one-seeded fruit
• Small dry indehiscent fruit with the seed distinct from the fruit wall
• Sunflower seed, botanically

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Achene \A*chene"\, Achenium \A*che"ni*um\n. [Gr. 'a priv. + ? to gape.] (Bot.) A small, dry, indehiscent fruit, containing a single seed, as in the buttercup; -- called a naked seed by the earlier botanists. [Written also akene and ach[ae]nium .]

Wiktionary Word definitions in Wiktionary
n. (context botany English) A small, dry, indehiscent fruit, containing a single seed, as in the buttercup.

Wikipedia Word definitions in Wikipedia
An achene (Greek ἀ, a , privative + χαίνειν, chainein , to gape; also sometimes referred to as akene and occasionally achenium or achenocarp ) is a type of simple dry fruit produced by many species of flowering plants . Achenes are monocarpellate (formed ...