13-Letter Words Containing: IDO

• a B vitamin that is essential for metabolism of amino acids and starch

• continually shifting or rapidly changing

• plants having vascular tissue and reproducing by spores

• visual examination (with a sigmoidoscope) of the lower third of the colon in a search for polyps

• A polymer of glycan and peptides found in bacterial cell walls

• a complex pattern of constantly changing colors and shapes

• an optical toy in a tube; it produces symmetrical patterns as bits of colored glass are reflected by mirrors

• an extinct seed-producing fernlike plant of the order Cycadofilicales (or group Pteridospermae)

• an entomologist who specializes in the collection and study of butterflies and moths

• insect that in the adult state has four wings more or less covered with tiny scales