Raceme n. : A flower cluster with an elongated axis and many one-flowered lateral pedicels, as in the currant and chokecherry.

Example:
What is the difference between "Raceme" and "antodium" (capitulum, flower head)?

Taxonomy
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Defination from the web:
raceme is a type of inflorescence that is unbranched and indeterminate and bears pedicellate flowers — flowers having short floral stalks called pedicels — along the axis. ... In a raceme, the oldest flowers are borne towards the base and new flowers are produced as the shoot grows. ...