血蓝素 (xuèlánsù): hemocyanin (copper-based blood…

Meanings

Zhāngyú hé pángxiè de xuèyè zhōng hányǒu xuèlánsù, suǒyǐ chéng lánsè.

Octopuses and crabs contain hemocyanin in their blood, which is why it appears blue.

Xuèlánsù yǐ tóng wéi héxīn, ér xuèhóngsù yǐ tiě wéi héxīn.

Hemocyanin is built around copper, while hemoglobin is built around iron.

memory

Literally 血 (blood) + 蓝 (blue) + 素 (pigment) — a blue blood pigment. Parallel to 血红素 (xuèhóngsù, hemoglobin = blood-red pigment) for vertebrates.

血 xuè

蓝 lán

素 sù