n. An indeterminate inflorescence in which the flowers are arranged along a single central axis.
the GNU version of the Collaborative International Dictionary of English
n. A flower cluster with an elongated axis and many one-flowered lateral pedicels, as in the currant and chokecherry.
The Century Dictionary and Cyclopedia
n. A cluster; specifically, in botany, a simple inflorescence of the centripetal or indeterminate type, in which the several or many flowers are borne on somewhat equal axillary pedicels along a relatively lengthened axis or rachis.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. usually elongate cluster of flowers along the main stem in which the flowers at the base open first
Word Usage
"Birth flower, May, lily of the valley, stemless convallariaceous herb, Convallaria majalis, with a raceme of drooping, bell-shaped fragrant white flowers."