1. Abnormally enlarged thyroid gland; can result from underproduction or overproduction of hormone or from a deficiency of iodine in the diet
   - goiter [N. Amer], goitre [Brit, Cdn], struma

Type of: disease

• pigeon pea
• pigeon toes
• pigeon-breasted
• pigeon-pea plant
• pigeon-toed
• pigeonhole
• pigeonholing
• pigfish
• piggery
• piggish
• piggishly
• piggishness
• piggy
• piggy bank
• piggyback
• piggyback plant
• pigheaded
• pigheadedness
• piglet
• pigman
• pigment
• sun plant
• sun protection factor
• Sun River
• sun spurge