Undergrowth is the tangle of bushes and plants under the forest trees. Thick undergrowth, hack through the undergrowth, cleared the undergrowth.
It is where most woodland life actually is — nesting, feeding and cover all happen there rather than in the canopy, which is why clearing it for tidiness costs a wood dearly. It grows thickest where light reaches the floor. Note that the compound is under plus growth.
1nounundergrowthThe bushes and plants growing under forest trees.
“A deer crashed through the undergrowth and disappeared into the forest.”
undergrowth is vegetation.
Under plus growth, a plain English compound. West Frisian has the same compound.
From under- + growth. Cognate with West Frisian ûndergroei (“undergrowth”).
Etymology from Wiktionary, CC BY-SA