noun🔗ShareSobrequillaA longitudinal beam fastened on top of the keel of a vessel for strength and stiffness."The shipwright carefully bolted the thick keelson to the keel, adding vital strength to the wooden boat's structure. "El carpintero naval atornilló cuidadosamente la sobrequilla gruesa a la quilla, agregando una fuerza vital a la estructura del barco de madera.nauticalstructurevehicleChat with AIVocabulary GamePractice Reading