What is "lateral pectoral nerve"

n. (context anatomy English) A nerve that branches from the lateral cord and innervates the pectoralis major muscle.

The lateral nerve (lateral anterior thoracic nerve) arises from the lateral cord of the brachial plexus, and through it from the fifth, sixth, and seventh cervical nerves.

It passes across the axillary artery and vein, pierces the clavipectoral (coracoclavicular) fascia, and is distributed to the deep surface of the Pectoralis major muscle.