noun🔗ShareTimoA ductless gland, consisting mainly of lymphatic tissue, located behind the top of the breastbone. It is most active during puberty, after which it shrinks in size. It plays an important role in the development of the immune system and produces lymphocytes.""During childhood, the thymus helps the body learn to fight off infections, but it becomes smaller as we get older." "Durante la infancia, el timo ayuda al cuerpo a aprender a combatir las infecciones, pero se vuelve más pequeño a medida que envejecemos.bodyorgananatomyphysiologymedicinebiologyChat with AIVocabulary GamePractice Reading