Bot. the spiral primary bud of germinating grain
Origin of acrospirealtered as if ; from acro- + spire ; from Eng dialect, dialectal akerspire ; from Old English æhher (Northumbrian dialect, dialectal ), ēar, ear + spīr, spire
(third-person singular simple present acrospires, present participle acrospiring, simple past and past participle acrospired)
- To put forth the first sprout.