| CODONS | • codons n. Plural of codon. • CODON n. a triplet of bases in the messenger-RNA molecule, which determines a particular amino-acid in protein synthesis. |
| MYLODONS | • mylodons n. Plural of mylodon. • MYLODON n. (Greek) an extinct genus of large sloth-like American edentates, also MYLODONT. |
| MASTODONS | • mastodons n. Plural of mastodon. • Mastodons n. Plural of Mastodon. • MASTODON n. a large extinct mammal resembling the elephant, also MASTODONT. |
| SMILODONS | • smilodons n. Plural of smilodon. • SMILODON n. an extinct genus of saber-toothed tigers. |
| STEGODONS | • stegodons n. Plural of stegodon. • STEGODON n. an extinct mammal with ridged teeth, also STEGODONT. |
| ANTICODONS | • anticodons n. Plural of anticodon. • ANTICODON n. a triplet of nucleotide bases in transfer RNA. |
| CHAETODONS | • chaetodons n. Plural of chaetodon. • CHAETODON n. any fish of the tropical genus Chaetodon, having slender teeth. |
| IGUANODONS | • iguanodons n. Plural of iguanodon. • IGUANODON n. a genus of gigantic herbivorous dinosaurs having a birdlike pelvis and large hind legs. |
| MEGALODONS | • megalodons n. Plural of megalodon. • MEGALODON n. an extinct giant shark of the Cenozoic era. |
| SOLENODONS | • solenodons n. Plural of solenodon. • SOLENODON n. either of two species of singular West Indian insectivores, allied to the tenrec. |
| SPHENODONS | • sphenodons n. Plural of sphenodon. • SPHENODON n. a member of the Sphenodont group of lizards, to which the tuatara belongs. |
| DIPROTODONS | • diprotodons n. Plural of diprotodon. • DIPROTODON n. any marsupial of the Diprotodontia, that includes kangaroos, wombats, etc., also DIPROTODONT. |
| PTERANODONS | • pteranodons n. Plural of pteranodon. • PTERANODON n. a toothless flying reptile of the Cretaceous period with a hornlike crest. |