Definition of haemocoel in English:

haemocoel

(US hemocoel)

noun

Zoology
  • The primary body cavity of most invertebrates, containing circulatory fluid.

    • ‘The circulatory system includes a heart that pumps blood into an open body cavity or hemocoel.’
    • ‘Arthropods also have a hemocoel, an open body cavity in which blood flows and bathes the tissues and organs.’
    • ‘Other internal organs are suspended in a general hemocoel.’
    • ‘The circulatory system is open and consists of a heart, arteries, and the open spaces of the hemocoel.’
    • ‘These tumors are frequently found floating freely in the haemocoel.’

Origin

Late 19th century: from haemo- ‘of blood’ + Greek koilos hollow, cavity.

Pronunciation:

haemocoel

/ˈhiːməsiːl/