| TENE | • -tene suff. (Biology) Ribbon-like structure; Used to form words relating the structure of chromosomes in meiosis. • TENE n. (archaic) injury, pain, also TEEN, TEENE. |
| CTENE | • ctene n. (Zoology) A band of fused cilia on the bodies of ctenophores, used for locomotion. • CTENE n. (Greek) a comblike swimming organ. |
| BUTENE | • butene n. (Chemistry) Any of several forms of butylene. • BUTENE n. any one of three metameric hydrocarbons of the ethylene series, also BUTYLENE. |
| KETENE | • ketene n. (Organic chemistry) any of a class of unsaturated ketones, having a general formula R1R2C=C=O, that… • ketene n. (Organic chemistry) the parent compound of this class, CH2=C=O, an unstable, reactive colourless gas. • KETENE n. a toxic gas, also ETHONONE. |
| RETENE | • retene n. (Organic chemistry) A hydrocarbon, polymeric with benzene, that is extracted from pine tar and also… • RETENE n. a hydrocarbon obtained from tar. |
| HAPTENE | • HAPTENE n. a substance similar to an antigen, also HAPTEN. |
| PENTENE | • pentene n. (Organic chemistry) Any of several isomeric alkenes having five carbon atoms and one double bond. • PENTENE n. an unsaturated hydrocarbon of the olefine series, also PENTYLENE. |
| CAROTENE | • carotene n. (Organic chemistry) A class of tetraterpene plant pigments; they vary in colour from yellow, through… • carotene n. (Organic chemistry) Specifically, a number of isomers of tetraterpene hydrocarbons, C40H56, (especially… • 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. |
| POLYTENE | • polytene adj. (Molecular biology) Having very large chromosomes with many chromatids (arms). • polytene n. (Molecular biology) A very large chromosome with many chromatids (arms); a chromosome exhibiting polyteny. • POLYTENE adj. having chromosomes of a certain type. |
| ZYGOTENE | • zygotene n. (Biology) The intimate pairing of homologous chromosomes during the synaptic stage of meiosis. • ZYGOTENE n. a stage in meiosis. |
| DIPLOTENE | • diplotene n. (Biology) The fourth stage of prophase of meiosis, during which homologous chromosome pairs begin to… • DIPLOTENE n. the fourth stage of the prophase of meiosis, in which the chromosomes clearly double. |
| ELEOPTENE | • ELEOPTENE n. the liquid part of a volatile oil. |
| ISOBUTENE | • isobutene n. (Organic chemistry) The unsaturated hydrocarbon methylpropene, (CH3)2C=CH2; used in the manufacture… • ISOBUTENE n. an isomer of butene. |
| LEPTOTENE | • leptotene n. (Biology) The first part of the prophase of meiosis, characterized by threadlike chromosomes. • LEPTOTENE n. the first stage of meiotic prophase in which long, slender, single-stranded chromosomes develop. |
| PACHYTENE | • pachytene n. (Biology) The third stage of prophase 1 of meiosis, during which the chromosomes shorten and divide… • PACHYTENE n. the stage of the prophase of meiosis following zygotene. |
| ELAEOPTENE | • elaeoptene n. (Chemistry) The more liquid or volatile portion of certain oily substances, as distinguished from stearoptene… • ELAEOPTENE n. the liquid part of a volatile oil. |
| AMINOBUTENE | • AMINOBUTENE n. a synthetic pain-relieving drug, less addictive than morphine. |
| STEAROPTENE | • stearoptene n. (Chemistry) The more solid ingredient of certain volatile oils, contrasted with elaeoptene. • STEAROPTENE n. the part of an essential oil that separates out as a solid on cooling or standing. |
| BETACAROTENE | • betacarotene n. (Pharmacology) The international nonproprietary name of beta-carotene when used as a drug. • beta-carotene n. (Biochemistry) A plant pigment that is an isomer of carotene, found in dark green and dark yellow vegetables… • beta␣carotene n. Alternative spelling of beta-carotene. |