vb. To emit foam; to froth; - said of the emission of yeast from beer in course of fermentation. - n. (Bot.) Any plant of the genus Euphorbia. See Euphorbia. Spurge flax, an evergreen shrub (Daphne Gnidium) with crowded narrow leaves. It is native of Southern Europe.
- Spurge laurel, a European shrub (Daphne Laureola) with oblong evergreen leaves.
- Spurge nettle. See under Nettle.
- Spurge olive, an evergreen shrub (Daphne oleoides) found in the Mediterranean region.