Answer: erythrocyte

AnswerCrossword Clue
ERYTHROCYTEHemoglobin carrier
erythrocyteA red blood cell that (in humans) is typically a biconcave disc without a nucleus. Erythrocytes contain the pigment hemoglobin, which imparts the red color to blood, and transport oxygen and carbon dioxide to and from the tissues
erythrocytea red blood corpuscle