what does surge in this sentence mean? "A very young woman leaped across the bar in one muscular surge and strode forward"
A sudden, intense effort, for example, the runner is 3rd placed surged ahead to take the lead positon.
For another example, do you know what a surge protector is for? (to prevent damage to electrical devices from surges (spikes) in electrical current.
To rise suddenly in an excessive manner. (Merriam-Webster Collegiate Dictionary)