thickening
/ˈθɪkənɪŋ/noun [物质名词] 增厚；增稠剂，芡粉；加厚组织
The doctors believe aspirin helps heart surgery patients because it can prevent blood from thickening and blood vessels from being blocked. 医生们认为，阿司匹林对心脏手术病人有利，因为它可以防止血液增稠和血管堵塞。
adjective [原级] 变厚的
DDT prevented eagle eggshells from thickening. DDT 会阻止鹰蛋壳变厚。
verb [vt. 及物动词] （使）变厚，变浓稠（thicken 的现在分词）
It was a dangerous journey through thickening fog. 旅途中雾越来越大，险象环生。
