gradual encroachment; erosion; slow invasion

💡 Nuance & Usage: This word describes a slow, steady, and often imperceptible process of taking over, eroding, or encroaching upon something (e.g., territory, culture, market share, resources). It carries a negative connotation, implying a detrimental effect. The Kanji literally mean "silkworm" (蚕) and "eat" (食), reflecting the image of silkworms gradually consuming mulberry leaves. It's primarily used metaphorically.