核子潛艇 hézǐqiántǐng nuclear submarine Origin Definitions Defs Strokes Stroke Words Sentences Sents 核子 hézǐ nuclear Relating to an atomic nucleus; used attributively to mean nuclear as in nuclear weapons or nuclear power潜艇 潛艇 qiántǐng noun submarine A ship designed to operate underwater for military, scientific, or engineering purposes. Also called a 潜水艇 qiánshuǐtǐng.