| AMINOBUTENES | • AMINOBUTENE n. a synthetic pain-relieving drug, less addictive than morphine. |
| BETACAROTENES | • BETACAROTENE n. a nutrient found in yellow and orange fruits and vegetables. |
| BUTENES | • butenes n. Plural of butene. • BUTENE n. any one of three metameric hydrocarbons of the ethylene series, also BUTYLENE. |
| CAROTENES | • carotenes n. Plural of carotene. • CAROTENE n. any of a number of reddish-yellow pigments widely distributed in plants that are converted to vitamin A in the body, also CAROTIN, CARROTIN. |
| CTENES | • ctenes n. Plural of ctene. • CTENE n. (Greek) a comblike swimming organ. |
| DIPLOTENES | • diplotenes n. Plural of diplotene. • DIPLOTENE n. the fourth stage of the prophase of meiosis, in which the chromosomes clearly double. |
| ELAEOPTENES | • elaeoptenes n. Plural of elaeoptene. • ELAEOPTENE n. the liquid part of a volatile oil. |
| ELEOPTENES | • ELEOPTENE n. the liquid part of a volatile oil. |
| HAPTENES | • HAPTENE n. a substance similar to an antigen, also HAPTEN. |
| ISOBUTENES | • isobutenes n. Plural of isobutene. • ISOBUTENE n. an isomer of butene. |
| KETENES | • ketenes n. Plural of ketene. • KETENE n. a toxic gas, also ETHONONE. |
| LEPTOTENES | • leptotenes n. Plural of leptotene. • LEPTOTENE n. the first stage of meiotic prophase in which long, slender, single-stranded chromosomes develop. |
| PACHYTENES | • pachytenes n. Plural of pachytene. • PACHYTENE n. the stage of the prophase of meiosis following zygotene. |
| PENTENES | • pentenes n. Plural of pentene. • PENTENE n. an unsaturated hydrocarbon of the olefine series, also PENTYLENE. |
| RETENES | • retenes n. Plural of retene. • RETENE n. a hydrocarbon obtained from tar. |
| STEAROPTENES | • stearoptenes n. Plural of stearoptene. • STEAROPTENE n. the part of an essential oil that separates out as a solid on cooling or standing. |
| TENES | • Tenes prop.n. (Greek mythology) The eponymous hero of the island of Tenedos. • TENE n. (archaic) injury, pain, also TEEN, TEENE. |
| ZYGOTENES | • zygotenes n. Plural of zygotene. • ZYGOTENE n. a stage in meiosis. |