book gill
noun
: a gill found in the horseshoe crabs that consists of membranous folds arranged like the leaves of a book
Word History
First Known Use
1897, in the meaning defined above
- open for
- open for (someone)
- open for business
- open for discussion
- open for someone
- open form
- open fracture
- open frame
- open furrow
- open fuse
- open gait
- open gate
- open grain
- open harmony
- open hawse
- open hole
- open house
- open ice
- open interest
- open internal juncture
- open investigation
- open invitation
- open joint
- open juncture
- open letter