| 单词 | a |
| 释义 | A nnoun.quantitya metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation Synset:A angstrom angstrom unit Part Holonyms:micromillimeter micromillimetre millimicron nanometer nanometre nm Hypernyms:metric linear unit Inherited Hypernyms:angstrommetric linear unitlinear unitunit of measurementdefinite quantitymeasureabstractionentity Inherited Hypernyms:angstrommetric linear unitmetric unitunit of measurementdefinite quantitymeasureabstractionentity Part Meronyms:micromicron picometer picometre nnoun.substanceany of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes Synset:A antiophthalmic factor axerophthol vitamin A Hypernyms:fat-soluble vitamin Inherited Hypernyms:vitamin afat-soluble vitaminvitaminnutrimentfoodsubstancematterphysical entityentity Direct Hyponyms:dehydroretinolretinolvitamin A1vitamin A2 Full Hyponyms: vitamin a1vitamin a2 nnoun.substanceone of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose) Synset:A deoxyadenosine monophosphate Hypernyms:base nucleotide Inherited Hypernyms:deoxyadenosine monophosphatenucleotideesterorganic compoundcompoundchemicalmaterialsubstancematterphysical entityentity Inherited Hypernyms:deoxyadenosine monophosphatenucleotideesterorganic compoundcompoundchemicalmaterialsubstancepartrelationabstractionentity nnoun.substance(biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA Topic:biochemistry Synset:A adenine Substance Holonyms:DNA deoxyribonucleic acid desoxyribonucleic acid RNA ribonucleic acid Hypernyms:purine Inherited Hypernyms:adeninepurinebasecompoundchemicalmaterialsubstancematterphysical entityentity Inherited Hypernyms:adeninepurinebasecompoundchemicalmaterialsubstancepartrelationabstractionentity nnoun.quantitythe basic unit of electric current adopted under the Systeme International d'Unites Synset:A amp ampere Examples:
Part Holonyms:abamp abampere Hypernyms:current unit Inherited Hypernyms:amperecurrent unitelectromagnetic unitunit of measurementdefinite quantitymeasureabstractionentity Part Meronyms:mA milliampere nnoun.communicationthe 1st letter of the Roman alphabet Synset:A Member Holonyms:Latin alphabet Roman alphabet Hypernyms:alphabetic character letter letter of the alphabet Inherited Hypernyms:alettercharacterwritten symbolsymbolsignalcommunicationabstractionentity nnoun.bodythe blood group whose red cells carry the A antigen Synset:A group A type A Hypernyms:blood group blood type Inherited Hypernyms:ablood groupbloodliquid body substancebody substancesubstancematterphysical entityentity Inherited Hypernyms:ablood groupbloodliquid body substancebody substancesubstancepartrelationabstractionentity |
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