Term: paper nautilus: cephalopod mollusk of warm seas whose females have delicate papery spiral shells
Broader: invertebrate: any animal lacking a backbone or notochord; the term is not used as a scientific classification | Unrelated: mastaba: an ancient Egyptian mud-brick tomb with a rectangular base and sloping sides and flat roof
Broader: invertebrate: any animal lacking a backbone or notochord; the term is not used as a scientific classification | Unrelated: slip coach: a railway car at the end of the train; it can be detached without stopping the train
Broader: invertebrate: any animal lacking a backbone or notochord; the term is not used as a scientific classification | Unrelated: chemosurgery: use of chemical to destroy diseased or malignant tissue; used in treatment of skin cancer
Broader: invertebrate: any animal lacking a backbone or notochord; the term is not used as a scientific classification | Unrelated: faineance: the trait of being idle out of a reluctance to work
Broader: invertebrate: any animal lacking a backbone or notochord; the term is not used as a scientific classification | Unrelated: merit system: the system of employing and promoting civil servants on the basis of ability
Broader: invertebrate: any animal lacking a backbone or notochord; the term is not used as a scientific classification | Unrelated: gill slit: one of a series of slit openings in the pharynxes of fishes and aquatic amphibians through which water passes
Broader: invertebrate: any animal lacking a backbone or notochord; the term is not used as a scientific classification | Unrelated: aphakic: someone afflicted by aphakia; someone lacking the natural lenses of the eyes
Broader: invertebrate: any animal lacking a backbone or notochord; the term is not used as a scientific classification | Unrelated: foramen: a natural opening or perforation through a bone or a membranous structure
Broader: invertebrate: any animal lacking a backbone or notochord; the term is not used as a scientific classification | Unrelated: bench: a long seat for more than one person
Broader: invertebrate: any animal lacking a backbone or notochord; the term is not used as a scientific classification | Unrelated: engagement: contact by fitting together