Term: opisthobranchia: gastropods having the gills when present posterior to the heart and having no operculum: includes sea slugs; sea butterflies; sea hares
Broader: class: (biology) a taxonomic group containing one or more orders | Unrelated: italian parsley: a variety of parsley having flat leaves
Broader: class: (biology) a taxonomic group containing one or more orders | Unrelated: inclination: that toward which you are inclined to feel a liking
Broader: class: (biology) a taxonomic group containing one or more orders | Unrelated: bottle bill: a statute that would require merchants to reclaim used bottles
Broader: class: (biology) a taxonomic group containing one or more orders | Unrelated: arthritis: inflammation of a joint or joints
Broader: class: (biology) a taxonomic group containing one or more orders | Unrelated: coryphaena equisetis: a kind of dolphinfish
Broader: class: (biology) a taxonomic group containing one or more orders | Unrelated: estradiol patch: a transdermal patch that allows estradiol to be absorbed into the blood stream; used in treating estrogen deficiency and in hormone replacement therapy
Broader: class: (biology) a taxonomic group containing one or more orders | Unrelated: mug's game: a futile or unprofitable endeavor
Broader: class: (biology) a taxonomic group containing one or more orders | Unrelated: probation: a trial period during which your character and abilities are tested to see whether you are suitable for work or for membership
Broader: class: (biology) a taxonomic group containing one or more orders | Unrelated: romanticism: impractical romantic ideals and attitudes
Broader: class: (biology) a taxonomic group containing one or more orders | Unrelated: radical: a character conveying the lexical meaning of a logogram