EXAMPLES | WORD ORIGIN noun, plural ra·chil·lae . [r uh- kil-ee] /rəˈkɪl i/ . Botany a small or secondary rachis, as the axis of a spikelet in a grass inflorescence. Origin of rachilla 1835–45;
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for rachilla Historical Examples of rachilla
It is attached to the axis of the flower and its back is towards the
The caryopsis is very narrow, and the
rachilla long and feathered with hairs. Rachilla short, flattened and angular, tapering below (see Festuca elatior).
Palea very similar to A. fatua, apex 2-4-toothed or bifid,
rachilla with stiffer hairs.
A conspicuous tuft of fine silky hairs, longer than the palea at the base and on the
rachilla. British Dictionary definitions for rachilla noun (in grasses) the short stem of a spikelet that bears the florets Word Origin for rachilla
C19: from New Latin, diminutive of
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Plural rachillae ( rə-kĭl) ′ē The stalk that bears the florets in the spikelets of grasses and similar plants, such as rushes and sedges. The rachilla often has a zigzag shape, with florets at each point at which the orientation of the rachilla turns.
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