ovulinA seminal protein that mediates ovulation in fish
ovulistA believer in the theory (ovism or ovulism) that an organism is entirely preformed in the egg, and that at the time of fecundation the spermatozoa simply gives the impetus which caused the unfolding of the egg, in which all generations are enclosed one within the other.
OwingsvilleA home rule city, the county seat of Bath County, Kentucky, United States.
owlAny of various birds of prey of the order Strigiformes, families Strigidae and Tytonidae, that are primarily nocturnal and have forward-looking, binocular vision, limited eye movement, and good hearing.
owlbearA monstrous creature resembling a bear with a beak.
ownBelonging to; possessed; acquired and designated by; proper to; property of; titled to; held in one's name; under/using the name of. Often marks a possessive determiner as reflexive, referring back to the subject of the clause or sentence.
OwyheeA census-designated place in Elko County, Nevada, United States.
owyheeiteAn orthorhombic-dipyramidal gray-white mineral containing antimony, bismuth, lead, silver, and sulfur.
oxAn adult castrated male of cattle (B. taurus), especially when used as a beast of burden.
oxabicyclicDescribing a bicyclic compound having a bridging oxygen atom.
oxabicyclohepteneA bicyclic heterocycle composed of a cycloheptene ring attached to an oxacycloheptene ring by a single bond
oxaboroleA five-membered heterocycle having three carbon atoms, one oxygen atom, one boron atom and two double bonds; it, and its derivatives, are formally derived from an oxazole by replacing the nitrogen atom with one of boron
oxacephemA derivative of cephem in which an oxygen atom has been substituted for sulfur; the basis for a group of antibiotics
oxaceprolA particular kind of anti-inflammatory drug that is used to treat osteoarthritis.
oxachelinA particular iron chelator and antifungal agent isolated from Streptomyces
oxacillinA narrow-spectrum beta-lactam antibiotic made by chemical modification of penicillin and administered in the form of its hydrated sodium salt C₁₉H₁₈N₃NaO₅S·H₂O to treat infections caused by penicillin-resistant staphylococci.
oxacillinaseAny of the OXA group of beta-lactamases, found mainly in Acinetobacter species.
oxacycleA heterocyclic compound with oxygen in the ring.
oxacyclicDescribing any heterocycle having one or more oxygen atoms in the ring
oxacyclohepteneA heterocycle composed of a cycloheptene ring in which one of the methylene (-CH₂-) groups has been replaced by an ether (-O-) group
oxacyclopentaneA relatively unreactive water-miscible compound with desirable properties as an organic solvent.
oxadiazepineAny of several isomeric seven-membered, unsaturated heterocycles containing four carbon atoms, two nitrogen atoms, one oxygen atoms and three double bonds
oxadiazinaneA six-membered saturated heterocycle containing three carbon atoms, two nitrogen atoms and one oxygen atom; any derivative of this compound
oxadiazineAn unsaturated six-membered heterocycle having three carbon atoms, one oxygen atom, two nitrogen atoms and two double bonds
oxadiazolAny univalent radical derived from an oxadiazole
oxadiazoleAny five-membered heterocycle having two carbon atoms, two nitrogen atoms, one oxygen atom, and two double bonds
oxadiazoloA functional group consisting of oxadiazole fused to another ring compound.
oxadiazoloneA derivative of oxadiazole having a carbonyl group adjacent to the oxygen atom