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allergy – n. a medical condition that causes someone to become sick after eating, touching, or breathing something that is harmless to most people
allergist – n. a specialist in allergy
pollen – n. the very fine usually yellow dust that is produced by a plant and that is carried to other plants of the same kind usually by wind or insects so that the plants can produce seeds
carbon dioxide – n. a gas that is produced when people and animals breathe out or when certain fuels are burned and that is used by plants for energy
bloom – n. the flowering state
sneeze – v. to suddenly force air out through your nose and mouth with a usually loud noise because your body is reacting to dust, a sickness, etc.
asthma – n. medical : a physical condition that makes it difficult for someone to breathe
