Definition of decussate in English:

decussate

verb ˈdɛkəseɪtdɪˈkʌseɪtdɪˈkəseɪt

[no object]technical

(of two or more things) cross or intersect each other to form an X.
（两个或更多事物）交叉成X形，交叉
the fibres decussate in the collar
领子上的纤维呈X形交叉。
Example sentencesExamples
- After decussating, these fibers ascend in a compact, ribbon like tract called the medial lemniscus.
- The central canal and surrounding gray matter appear as though pushed dorsally by the decussating bundles of axons.
- These decussating bundles can be seen distinctly between the lips of the ventral median fissure.
Synonyms
cross, criss-cross

adjective dɪˈkʌsətdɪˈkəseɪt

technical

1Shaped like an X.
X字形的
1. 1.1Botany (of leaves) arranged in opposite pairs, each pair being at right angles to the pair below.
  〔植〕（叶）交互对生的
  Example sentencesExamples
  Orchids, however, have all possible tetrad types: linear, decussate, square, tetrahedral, rhomboid and T-shaped are all reported.
  This is much simpler than those reproductive organs of living Gnetales with a cone-like inflorescence that is organized by paired or decussate bracts.
  This plant resembles some trimerophytes, such as Pertica, in that it has three-dimensional branching with branches arranged in a spiral or decussate pattern.
  For example, many pioneer trees exhibit orthotropic (vertically oriented) shoots that successively produce leaves in spiral or decussate phyllotaxy.

Derivatives

decussation

noun ˈdɛkəseɪʃ(ə)ndiːkʌˈseɪʃ(ə)nˌdɛkəˈseɪʃ(ə)n

technical

The pyramids rapidly diminish in size at the level of the decussation, reflecting the fact that the great majority of corticospinal fibers leave the pyramids at the decussation.
Example sentencesExamples
- The brainstem has been cut through the inferior colliculi and the decussation of the superior cerebellar peduncles.
- The great majority of the pyramidal fibers which arise in the cerebral cortex and descend through the pyramids of the medulla cross in the decussation, most of the remainder forming the uncrossed ventral corticospinal tract.
- The sensory decussation is the key feature of this section.
- The trigeminal alone had a spinal root which wandered down for a few centimetres past the decussation of the pyramids to finish at the level of the second cervical nerve.

Origin

Mid 17th century (as a verb): from Latin decussatus, past participle of decussare 'divide crosswise', from decussis (describing the figure X, i.e. the Roman numeral for the number 10), from decem 'ten'.

Definition of decussate in US English:

decussate

verbdɪˈkəseɪtdiˈkəsāt

[no object]technical

(of two or more things) cross or intersect each other to form an X.
（两个或更多事物）交叉成X形，交叉
the fibers decussate in the collar
领子上的纤维呈X形交叉。
Example sentencesExamples
- The central canal and surrounding gray matter appear as though pushed dorsally by the decussating bundles of axons.
- These decussating bundles can be seen distinctly between the lips of the ventral median fissure.
- After decussating, these fibers ascend in a compact, ribbon like tract called the medial lemniscus.
Synonyms
cross, criss-cross

adjectivedɪˈkəseɪtdiˈkəsāt

technical

1Shaped like an X.
X字形的
1. 1.1Botany (of leaves) arranged in opposite pairs, each pair being at right angles to the pair below.
  〔植〕（叶）交互对生的
  Example sentencesExamples
  This is much simpler than those reproductive organs of living Gnetales with a cone-like inflorescence that is organized by paired or decussate bracts.
  Orchids, however, have all possible tetrad types: linear, decussate, square, tetrahedral, rhomboid and T-shaped are all reported.
  This plant resembles some trimerophytes, such as Pertica, in that it has three-dimensional branching with branches arranged in a spiral or decussate pattern.
  For example, many pioneer trees exhibit orthotropic (vertically oriented) shoots that successively produce leaves in spiral or decussate phyllotaxy.

Origin

Mid 17th century (as a verb): from Latin decussatus, past participle of decussare ‘divide crosswise’, from decussis (describing the figure X, i.e. the Roman numeral for the number 10), from decem ‘ten’.

词汇	decussate
释义	Definition of decussate in English: decussate verb ˈdɛkəseɪtdɪˈkʌseɪtdɪˈkəseɪt [no object]technical (of two or more things) cross or intersect each other to form an X. （两个或更多事物）交叉成X形，交叉 the fibres decussate in the collar 领子上的纤维呈X形交叉。 Example sentencesExamples After decussating, these fibers ascend in a compact, ribbon like tract called the medial lemniscus. The central canal and surrounding gray matter appear as though pushed dorsally by the decussating bundles of axons. These decussating bundles can be seen distinctly between the lips of the ventral median fissure. Synonyms cross, criss-cross adjective dɪˈkʌsətdɪˈkəseɪt technical 1Shaped like an X. X字形的 1.1Botany (of leaves) arranged in opposite pairs, each pair being at right angles to the pair below. 〔植〕（叶）交互对生的 Example sentencesExamples Orchids, however, have all possible tetrad types: linear, decussate, square, tetrahedral, rhomboid and T-shaped are all reported. This is much simpler than those reproductive organs of living Gnetales with a cone-like inflorescence that is organized by paired or decussate bracts. This plant resembles some trimerophytes, such as Pertica, in that it has three-dimensional branching with branches arranged in a spiral or decussate pattern. For example, many pioneer trees exhibit orthotropic (vertically oriented) shoots that successively produce leaves in spiral or decussate phyllotaxy. Derivatives decussation noun ˈdɛkəseɪʃ(ə)ndiːkʌˈseɪʃ(ə)nˌdɛkəˈseɪʃ(ə)n technical The pyramids rapidly diminish in size at the level of the decussation, reflecting the fact that the great majority of corticospinal fibers leave the pyramids at the decussation. Example sentencesExamples The brainstem has been cut through the inferior colliculi and the decussation of the superior cerebellar peduncles. The great majority of the pyramidal fibers which arise in the cerebral cortex and descend through the pyramids of the medulla cross in the decussation, most of the remainder forming the uncrossed ventral corticospinal tract. The sensory decussation is the key feature of this section. The trigeminal alone had a spinal root which wandered down for a few centimetres past the decussation of the pyramids to finish at the level of the second cervical nerve. Origin Mid 17th century (as a verb): from Latin decussatus, past participle of decussare 'divide crosswise', from decussis (describing the figure X, i.e. the Roman numeral for the number 10), from decem 'ten'. Definition of decussate in US English: decussate verbdɪˈkəseɪtdiˈkəsāt [no object]technical (of two or more things) cross or intersect each other to form an X. （两个或更多事物）交叉成X形，交叉 the fibers decussate in the collar 领子上的纤维呈X形交叉。 Example sentencesExamples The central canal and surrounding gray matter appear as though pushed dorsally by the decussating bundles of axons. These decussating bundles can be seen distinctly between the lips of the ventral median fissure. After decussating, these fibers ascend in a compact, ribbon like tract called the medial lemniscus. Synonyms cross, criss-cross adjectivedɪˈkəseɪtdiˈkəsāt technical 1Shaped like an X. X字形的 1.1Botany (of leaves) arranged in opposite pairs, each pair being at right angles to the pair below. 〔植〕（叶）交互对生的 Example sentencesExamples This is much simpler than those reproductive organs of living Gnetales with a cone-like inflorescence that is organized by paired or decussate bracts. Orchids, however, have all possible tetrad types: linear, decussate, square, tetrahedral, rhomboid and T-shaped are all reported. This plant resembles some trimerophytes, such as Pertica, in that it has three-dimensional branching with branches arranged in a spiral or decussate pattern. For example, many pioneer trees exhibit orthotropic (vertically oriented) shoots that successively produce leaves in spiral or decussate phyllotaxy. Origin Mid 17th century (as a verb): from Latin decussatus, past participle of decussare ‘divide crosswise’, from decussis (describing the figure X, i.e. the Roman numeral for the number 10), from decem ‘ten’.
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