Definition of subtend in English:

subtend

verb sʌbˈtɛndsəbˈtɛnd

[with object]

1Geometry
(of a line, arc, or figure) form (an angle) at a particular point when straight lines from its extremities are joined at that point.
the angle subtended by a string of length r at the centre of the sphere
Example sentencesExamples
- In other words, when two plates subtended the same angle - one big and far away, the other small and nearby - the antennae also made the same angle with each other.
- The most common geometry for curved crystal diffraction is based on the Rowland circle principle, which relies on the well-known property of a circle that an arc segment subtends a constant angle for any point on the circle.
- The space between the dot and the first letter of the prime to the right of fixation subtended a visual angle of 21.
- Reticles are in the second focal plane, so as power is changed the angle subtended by the space between lines varies.
- The radian is a unit which connects the radius of an arc, the length of the arc and the angle subtended by the arc.
1. 1.1 (of an angle or chord) have bounding lines or points that meet or coincide with those of (a line or arc).
  Example sentencesExamples
  This allowed him to calculate the chord subtended by angles of 36, 72, 60, 90 and 120.
  In fact Shen demonstrated a remarkable ability to view spatial arrangements and he gave an approximate formula for the length of a circular arc in terms of the chord subtending the arc.
  The Arc, Chord, Radius, Height, Angle, Apothem, and Area Suppose you have a segment of a circle, bounded by an arc of the circle and the chord subtending it.
  Two pairs of parallel sides form equal inscribed angles that are bound to subtend equal chords - the third sides.
  These angles are subtended by the same chord, AW.
2Botany
(of a bract) extend under (a flower) so as to support or enfold it.
the main beauty is provided by the bracts which subtend the flowers
Example sentencesExamples
- The flower meristems are produced acropetally by the inflorescence meristem and are subtended by bracts.
- Trillium species are characterized by a single trimerous flower subtended by a whorl of three leaves.
- All flowers are subtended by a bract and two bracteoles.
- A single flower is borne on a scape arising between the basal leaves and subtended by a large, leaf-like bract.
- The bract immediately subtends the sepal, partly enclosing it.

Origin

Late 16th century (in sense 1): from Latin subtendere, from sub- 'under' + tendere 'stretch'. sense 2 dates from the late 19th century.

Rhymes

amend, append, apprehend, ascend, attend, befriend, bend, blend, blende, commend, comprehend, condescend, contend, defriend, depend, emend, end, expend, extend, fend, forfend, friend, impend, interdepend, lend, mend, misapprehend, misspend, offend, on-trend, Oostende, Ostend, perpend, portend, rend, reprehend, scrag-end, send, spend, suspend, tail end, tend, transcend, trend, underspend, unfriend, upend, vend, weekend, wend

Definition of subtend in US English:

subtend

verbsəbˈtɛndsəbˈtend

[with object]

1Geometry
(of a line, arc, or figure) form (an angle) at a particular point when straight lines from its extremities are joined at that point.
the angle subtended by a string of length r at the center of the sphere
Example sentencesExamples
- The most common geometry for curved crystal diffraction is based on the Rowland circle principle, which relies on the well-known property of a circle that an arc segment subtends a constant angle for any point on the circle.
- In other words, when two plates subtended the same angle - one big and far away, the other small and nearby - the antennae also made the same angle with each other.
- The radian is a unit which connects the radius of an arc, the length of the arc and the angle subtended by the arc.
- Reticles are in the second focal plane, so as power is changed the angle subtended by the space between lines varies.
- The space between the dot and the first letter of the prime to the right of fixation subtended a visual angle of 21.
1. 1.1 (of an angle or chord) have bounding lines or points that meet or coincide with those of (a line or arc).
  Example sentencesExamples
  These angles are subtended by the same chord, AW.
  The Arc, Chord, Radius, Height, Angle, Apothem, and Area Suppose you have a segment of a circle, bounded by an arc of the circle and the chord subtending it.
  In fact Shen demonstrated a remarkable ability to view spatial arrangements and he gave an approximate formula for the length of a circular arc in terms of the chord subtending the arc.
  This allowed him to calculate the chord subtended by angles of 36, 72, 60, 90 and 120.
  Two pairs of parallel sides form equal inscribed angles that are bound to subtend equal chords - the third sides.
2Botany
(of a bract) extend under (a flower) so as to support or enfold it.
the main beauty is provided by the bracts which subtend the flowers
Example sentencesExamples
- A single flower is borne on a scape arising between the basal leaves and subtended by a large, leaf-like bract.
- All flowers are subtended by a bract and two bracteoles.
- The flower meristems are produced acropetally by the inflorescence meristem and are subtended by bracts.
- Trillium species are characterized by a single trimerous flower subtended by a whorl of three leaves.
- The bract immediately subtends the sepal, partly enclosing it.

Origin

Late 16th century (in subtend (sense 1)): from Latin subtendere, from sub- ‘under’ + tendere ‘stretch’. subtend (sense 2) dates from the late 19th century.

单词	subtend
释义	Definition of subtend in English: subtend verb sʌbˈtɛndsəbˈtɛnd [with object] 1Geometry (of a line, arc, or figure) form (an angle) at a particular point when straight lines from its extremities are joined at that point. the angle subtended by a string of length r at the centre of the sphere Example sentencesExamples In other words, when two plates subtended the same angle - one big and far away, the other small and nearby - the antennae also made the same angle with each other. The most common geometry for curved crystal diffraction is based on the Rowland circle principle, which relies on the well-known property of a circle that an arc segment subtends a constant angle for any point on the circle. The space between the dot and the first letter of the prime to the right of fixation subtended a visual angle of 21. Reticles are in the second focal plane, so as power is changed the angle subtended by the space between lines varies. The radian is a unit which connects the radius of an arc, the length of the arc and the angle subtended by the arc. 1.1 (of an angle or chord) have bounding lines or points that meet or coincide with those of (a line or arc). Example sentencesExamples This allowed him to calculate the chord subtended by angles of 36, 72, 60, 90 and 120. In fact Shen demonstrated a remarkable ability to view spatial arrangements and he gave an approximate formula for the length of a circular arc in terms of the chord subtending the arc. The Arc, Chord, Radius, Height, Angle, Apothem, and Area Suppose you have a segment of a circle, bounded by an arc of the circle and the chord subtending it. Two pairs of parallel sides form equal inscribed angles that are bound to subtend equal chords - the third sides. These angles are subtended by the same chord, AW. 2Botany (of a bract) extend under (a flower) so as to support or enfold it. the main beauty is provided by the bracts which subtend the flowers Example sentencesExamples The flower meristems are produced acropetally by the inflorescence meristem and are subtended by bracts. Trillium species are characterized by a single trimerous flower subtended by a whorl of three leaves. All flowers are subtended by a bract and two bracteoles. A single flower is borne on a scape arising between the basal leaves and subtended by a large, leaf-like bract. The bract immediately subtends the sepal, partly enclosing it. Origin Late 16th century (in sense 1): from Latin subtendere, from sub- 'under' + tendere 'stretch'. sense 2 dates from the late 19th century. Rhymes amend, append, apprehend, ascend, attend, befriend, bend, blend, blende, commend, comprehend, condescend, contend, defriend, depend, emend, end, expend, extend, fend, forfend, friend, impend, interdepend, lend, mend, misapprehend, misspend, offend, on-trend, Oostende, Ostend, perpend, portend, rend, reprehend, scrag-end, send, spend, suspend, tail end, tend, transcend, trend, underspend, unfriend, upend, vend, weekend, wend Definition of subtend in US English: subtend verbsəbˈtɛndsəbˈtend [with object] 1Geometry (of a line, arc, or figure) form (an angle) at a particular point when straight lines from its extremities are joined at that point. the angle subtended by a string of length r at the center of the sphere Example sentencesExamples The most common geometry for curved crystal diffraction is based on the Rowland circle principle, which relies on the well-known property of a circle that an arc segment subtends a constant angle for any point on the circle. In other words, when two plates subtended the same angle - one big and far away, the other small and nearby - the antennae also made the same angle with each other. The radian is a unit which connects the radius of an arc, the length of the arc and the angle subtended by the arc. Reticles are in the second focal plane, so as power is changed the angle subtended by the space between lines varies. The space between the dot and the first letter of the prime to the right of fixation subtended a visual angle of 21. 1.1 (of an angle or chord) have bounding lines or points that meet or coincide with those of (a line or arc). Example sentencesExamples These angles are subtended by the same chord, AW. The Arc, Chord, Radius, Height, Angle, Apothem, and Area Suppose you have a segment of a circle, bounded by an arc of the circle and the chord subtending it. In fact Shen demonstrated a remarkable ability to view spatial arrangements and he gave an approximate formula for the length of a circular arc in terms of the chord subtending the arc. This allowed him to calculate the chord subtended by angles of 36, 72, 60, 90 and 120. Two pairs of parallel sides form equal inscribed angles that are bound to subtend equal chords - the third sides. 2Botany (of a bract) extend under (a flower) so as to support or enfold it. the main beauty is provided by the bracts which subtend the flowers Example sentencesExamples A single flower is borne on a scape arising between the basal leaves and subtended by a large, leaf-like bract. All flowers are subtended by a bract and two bracteoles. The flower meristems are produced acropetally by the inflorescence meristem and are subtended by bracts. Trillium species are characterized by a single trimerous flower subtended by a whorl of three leaves. The bract immediately subtends the sepal, partly enclosing it. Origin Late 16th century (in subtend (sense 1)): from Latin subtendere, from sub- ‘under’ + tendere ‘stretch’. subtend (sense 2) dates from the late 19th century.
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