挤压 (jǐ yā) is a compound verb meaning 'to compress' or 'to squeeze under pressure'. Although the characters appear in reverse order in pinyin (yā jǐ), the standard reading is jǐ yā — with 挤 meaning 'to squeeze, push in' and 压 meaning 'to press down, exert pressure'. Together, they emphasize force applied from multiple directions or sustained mechanical pressure, often resulting in deformation, discomfort, or functional impairment. This word frequently appears in medical, engineering, and everyday physical contexts.

It commonly describes physical actions (e.g., squeezing a tube, pressing dough) but more often conveys negative consequences — like nerve compression, tissue damage, or psychological stress caused by crowding or excessive demands. Unlike simple verbs like 压 (yā) or 挤 (jǐ) alone, 挤压 implies combined, often constraining pressure that restricts space or movement. It’s neutral in register but leans formal or technical when used in clinical or safety discussions.