单词 | exoderm |
释义 | ecto- /ek-tō- or ek-tə-/combining form(often interchanging with exo-) denoting outside, opp to endo- and ento- ORIGIN: Gr ektos outside ecˈtoblast noun (Gr blastos a shoot or bud; biology) The outer layer of cells in a gastrula, the epiblast ectoblasˈtic adjective ecˈtocrine noun An organic substance released in minute amounts by an organism into the environment, which exerts an effect on its own and other species' form, development or behaviour ecˈtoderm noun (Gr derma skin; biology)
ectodermˈal or ectodermˈic adjective ectoenˈzyme noun An exoenzyme ectogenˈesis noun (Gr genesis generation; biology)
ectogenetˈic adjective Produced by or characteristic of ectogenesis ectogenˈic adjective
ectogenous /ek-tojˈə-nəs/ adjective (biology) Capable of living independently, or outside the body of the host (as some parasites) ectogˈeny noun The effect of pollen on the tissues of a plant ecˈtomorph noun
ectomorphˈic adjective ecˈtomorphy noun ectoparˈasite noun An external parasite ectoparasitˈic adjective ecˈtophyte noun (Gr phyton a plant; botany) A vegetable ectoparasite ectophytic /-fitˈik/ adjective ecˈtoplasm noun
ectoplasˈmic adjective ectoplasˈtic adjective Ectoprocˈta same as Polyzoa (see under poly-) ecˈtosarc noun (Gr sarx, sarkos flesh; zoology) Ectoplasm ecˈtotherm noun A cold-blooded animal ectothermˈic adjective ectothermˈy noun ectotrophˈic adjective (Gr trophē food; botany) Of a mycorrhiza, having its hyphae mainly on the outside of the root that it feeds ectozōˈan noun and adjective ectozōˈic adjective ectozōˈon noun (pl ectozōˈa) (Gr zōion animal) an animal ectoparasite exo- /ek-sō- or ek-so-/combining form(often interchanging with ecto-) outside, opp to endo- and ento- ORIGIN: Gr exō outside exobiologˈical adjective exobiolˈogist noun exobiolˈogy noun The study of (possible) extraterrestrial life exˈocarp noun (Gr karpos fruit; botany)
exˈocrine adjective (Gr krīnein to separate; physiology) Of glands, secreting through a duct nounAn exocrine gland exocytōˈsis noun (biology) The discharge of the contents of internal vesicles from a cell exocytōˈtic adjective exˈoderm noun
exodermˈal adjective exoderˈmis noun (Gr dermis skin) the outer cortex layer of a root exoenˈzyme noun An enzyme that functions outside the cell producing it, an ectoenzyme exoergic /-ûrˈjik/ adjective (Gr ergon work; nuclear eng) Of a process in which energy is released exogamˈic or exogˈamous adjective exogˈamy noun
exˈogen noun (obsolete) A dicotyledon, so called because its stem thickens by layers growing on the outside of the wood exogenetˈic adjective (medicine) Not genetic, not caused by genetic factors exogˈenous adjective
exogˈenously adverb exonuˈclease noun An enzyme which continuously cleaves nucleotides from one end of a nucleotide chain exˈonym noun (Gr onoma a name) a name for a town, country, etc in a foreign language exophˈagous adjective exophˈagy noun (Gr phagein to eat) the custom among cannibals of eating only the flesh of persons not of their own kin exˈoplanet noun A planet that orbits a star other than the sun exˈoplasm noun Ectoplasm exopˈodite or exˈopod noun (Gr pous, podos foot) the outer branch of a crustacean limb exopodˈitic adjective exoskelˈetal adjective exoskelˈeton noun A hard supporting or protective structure secreted externally by the ectoderm exˈosphere noun (Gr sphaira sphere) the outermost layer of the earth's atmosphere, beyond around 500km from the surface of the earth exospherˈic or exospherˈical adjective exosporˈal adjective exˈospore noun
exosporˈous adjective exotherˈmal or exotherˈmic adjective (Gr thermē heat; chem) Involving the release of heat, esp during a reaction exotherˈmally or exotherˈmically adverb exothermiˈcity noun exotoxˈic adjective exotoxˈin noun (biology) A toxin produced by a micro-organism and secreted into the surrounding medium |
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