/hɛməˈkɪləm/ HE-mə-KIL-əm

Definitions

1. noun

A body cavity in certain invertebrates, such as annelids and mollusks, that contains the organs and is filled with fluid.

“The hemocoelom in the earthworm provides a protective environment for its internal organs.”

2. noun

A type of body cavity found in some invertebrates, where the organs are suspended in a fluid-filled space.

“The hemocoelom is a unique feature of the octopus’s anatomy.”