| 释义 |
subtend
sub·tend S0854700 (səb-tĕnd′)tr.v. sub·tend·ed, sub·tend·ing, sub·tends 1. Mathematics To be opposite to and delimit: The side of a triangle subtends the opposite angle.2. To underlie so as to enclose or surround: flowers subtended by leafy bracts.
[Latin subtendere, to extend underneath : sub-, sub- + tendere, to extend; see ten- in Indo-European roots.]subtend (səbˈtɛnd) vb (tr) 1. (Mathematics) geometry to be opposite to and delimit (an angle or side)2. (Botany) (of a bract, stem, etc) to have (a bud or similar part) growing in its axil3. to mark off4. to underlie; be inherent in[C16: from Latin subtendere to extend beneath, from sub- + tendere to stretch out]sub•tend (səbˈtɛnd, sʌb-)
v.t. 1. Geom. to extend under or be opposite to: a chord subtending an arc. 2. (of a leaf, bract, etc.) to occur beneath or close to. 3. to form or mark the outline or boundary of. [1560–70; < Latin subtendere to stretch beneath =sub- sub- + tendere to stretch] subtend
Past participle: subtended
Gerund: subtending
| Present |
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| I subtend | | you subtend | | he/she/it subtends | | we subtend | | you subtend | | they subtend |
| Preterite |
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| I subtended | | you subtended | | he/she/it subtended | | we subtended | | you subtended | | they subtended |
| Present Continuous |
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| I am subtending | | you are subtending | | he/she/it is subtending | | we are subtending | | you are subtending | | they are subtending |
| Present Perfect |
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| I have subtended | | you have subtended | | he/she/it has subtended | | we have subtended | | you have subtended | | they have subtended |
| Past Continuous |
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| I was subtending | | you were subtending | | he/she/it was subtending | | we were subtending | | you were subtending | | they were subtending |
| Past Perfect |
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| I had subtended | | you had subtended | | he/she/it had subtended | | we had subtended | | you had subtended | | they had subtended |
| Future |
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| I will subtend | | you will subtend | | he/she/it will subtend | | we will subtend | | you will subtend | | they will subtend |
| Future Perfect |
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| I will have subtended | | you will have subtended | | he/she/it will have subtended | | we will have subtended | | you will have subtended | | they will have subtended |
| Future Continuous |
|---|
| I will be subtending | | you will be subtending | | he/she/it will be subtending | | we will be subtending | | you will be subtending | | they will be subtending |
| Present Perfect Continuous |
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| I have been subtending | | you have been subtending | | he/she/it has been subtending | | we have been subtending | | you have been subtending | | they have been subtending |
| Future Perfect Continuous |
|---|
| I will have been subtending | | you will have been subtending | | he/she/it will have been subtending | | we will have been subtending | | you will have been subtending | | they will have been subtending |
| Past Perfect Continuous |
|---|
| I had been subtending | | you had been subtending | | he/she/it had been subtending | | we had been subtending | | you had been subtending | | they had been subtending |
| Conditional |
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| I would subtend | | you would subtend | | he/she/it would subtend | | we would subtend | | you would subtend | | they would subtend |
| Past Conditional |
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| I would have subtended | | you would have subtended | | he/she/it would have subtended | | we would have subtended | | you would have subtended | | they would have subtended |
Thesaurus| Verb | 1. | subtend - be opposite to; of angles and sides, in geometrydelimitbe - have the quality of being; (copula, used with an adjective or a predicate noun); "John is rich"; "This is not a good answer" |
Translationssubtend
subtend[səb′tend] (botany) To lie adjacent to and below another structure, often enclosing it. (mathematics) A line segment or an arc of a circle subtends an angle with vertex at a specified point if the end points of the line segment or arc lie on the sides of the angle. subtend
Synonyms for subtendverb be opposite toSynonymsRelated Words |