noun, noun or participle which takes 'suru'
shooting straight out; growing straight down
Used for something that extends or emerges directly outward or downward, often in technical or descriptive contexts. Can be used as a noun or with する.
この植物の根は直出している。
The roots of this plant grow straight down.
水がパイプから直出する。
Water shoots straight out of the pipe.
Compound of 直 (choku, 'straight') and 出 (shutsu, 'come out'). The exact historical derivation is uncertain, but the meaning follows directly from the components.