| 释义 |
pith
pith P0335600 (pĭth)n.1. The soft, spongy tissue in the center of the stems of most vascular plants, consisting mainly of parenchyma.2. a. The soft inner substance of a feather or hair.b. The spinal cord.3. The essential or central part; the heart or essence: The pith of your argument is controversial.4. Strength; vigor; mettle.5. Significance; importance: matters of great pith.tr.v. pithed, pith·ing, piths 1. To remove the pith from (a plant stem).2. To sever or destroy the spinal cord of, usually by inserting a needle into the vertebral canal.3. To kill (cattle) by cutting the spinal cord.
[Middle English, from Old English pitha.]pith (pɪθ) n1. (Botany) the soft fibrous tissue lining the inside of the rind in fruits such as the orange and grapefruit2. the essential or important part, point, etc3. weight; substance4. (Botany) botany Also called: medulla the central core of unspecialized cells surrounded by conducting tissue in stems5. (Biology) the soft central part of a bone, feather, etcvb (tr) 6. (Zoology) to destroy the brain and spinal cord of (a laboratory animal) by piercing or severing7. (Zoology) to kill (animals) by severing the spinal cord8. (Botany) to remove the pith from (a plant)[Old English pitha; compare Middle Low German pedik, Middle Dutch pitt(e)]pith (pɪθ)
n. 1. the soft, spongy central cylinder of parenchymatous tissue in the stems of dicotyledonous plants. 2. the soft inner part of a feather, a hair, etc. 3. the important or essential part; core: the pith of the matter. 4. substance; solidity: an argument without pith. 5. Archaic. spinal cord or bone marrow. 6. Archaic. strength or vigor; mettle. v.t. 7. to remove the pith from (plants). 8. to destroy the spinal cord or brain of. 9. to slaughter, as cattle, by severing the spinal cord. [before 900; Middle English; Old English pitha; c. Dutch pit. compare pit2] pith (pĭth) The soft, spongy tissue in the center of the stems of most flowering plants. Composed of parenchyma cells, the pith is gradually compressed by the inward growth of the vascular tissue known as xylem. As the plant grows older, the pith dries out and often disintegrates, leaving the stem hollow.pith - First referred to the spongy cellular tissue in the stems and branches of many plants, and also the spongy white tissue lining the rind of citrus fruits.See also related terms for rind.pith
Past participle: pithed
Gerund: pithing
| Present |
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| I pith | | you pith | | he/she/it piths | | we pith | | you pith | | they pith |
| Preterite |
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| I pithed | | you pithed | | he/she/it pithed | | we pithed | | you pithed | | they pithed |
| Present Continuous |
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| I am pithing | | you are pithing | | he/she/it is pithing | | we are pithing | | you are pithing | | they are pithing |
| Present Perfect |
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| I have pithed | | you have pithed | | he/she/it has pithed | | we have pithed | | you have pithed | | they have pithed |
| Past Continuous |
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| I was pithing | | you were pithing | | he/she/it was pithing | | we were pithing | | you were pithing | | they were pithing |
| Past Perfect |
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| I had pithed | | you had pithed | | he/she/it had pithed | | we had pithed | | you had pithed | | they had pithed |
| Future |
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| I will pith | | you will pith | | he/she/it will pith | | we will pith | | you will pith | | they will pith |
| Future Perfect |
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| I will have pithed | | you will have pithed | | he/she/it will have pithed | | we will have pithed | | you will have pithed | | they will have pithed |
| Future Continuous |
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| I will be pithing | | you will be pithing | | he/she/it will be pithing | | we will be pithing | | you will be pithing | | they will be pithing |
| Present Perfect Continuous |
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| I have been pithing | | you have been pithing | | he/she/it has been pithing | | we have been pithing | | you have been pithing | | they have been pithing |
| Future Perfect Continuous |
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| I will have been pithing | | you will have been pithing | | he/she/it will have been pithing | | we will have been pithing | | you will have been pithing | | they will have been pithing |
| Past Perfect Continuous |
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| I had been pithing | | you had been pithing | | he/she/it had been pithing | | we had been pithing | | you had been pithing | | they had been pithing |
| Conditional |
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| I would pith | | you would pith | | he/she/it would pith | | we would pith | | you would pith | | they would pith |
| Past Conditional |
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| I would have pithed | | you would have pithed | | he/she/it would have pithed | | we would have pithed | | you would have pithed | | they would have pithed |
pithIn citrus fruit, the soft fibrous tissue lining the inside of the rind.Thesaurus| Noun | 1. | pith - soft spongelike central cylinder of the stems of most flowering plantsplant tissue - the tissue of a plantparenchyma - the primary tissue of higher plants composed of thin-walled cells that remain capable of cell division even when mature; constitutes the greater part of leaves, roots, the pulp of fruits, and the pith of stems | | 2. | pith - the choicest or most essential or most vital part of some idea or experience; "the gist of the prosecutor's argument"; "the heart and soul of the Republican Party"; "the nub of the story"essence, heart and soul, inwardness, nitty-gritty, substance, gist, kernel, nub, meat, core, sum, marrow, heart, center, centrecognitive content, mental object, content - the sum or range of what has been perceived, discovered, or learnedbare bones - (plural) the most basic facts or elements; "he told us only the bare bones of the story"hypostasis - (metaphysics) essential nature or underlying realityhaecceity, quiddity - the essence that makes something the kind of thing it is and makes it different from any otherquintessence - the purest and most concentrated essence of somethingstuff - a critically important or characteristic component; "suspense is the very stuff of narrative" | | Verb | 1. | pith - remove the pith from (a plant)get rid of, remove - dispose of; "Get rid of these old shoes!"; "The company got rid of all the dead wood" |
pithnounThe most central and material part:core, essence, gist, heart, kernel, marrow, meat, nub, quintessence, root, soul, spirit, stuff, substance.Law: gravamen.Translationspith (piθ) noun1. the white substance between the peel of an orange, lemon etc and the fruit itself. 果髓 果髓2. the soft substance in the centre of the stems of plants. 木髓 木髓3. the most important part of anything. the pith of the argument. 核心 核心
pith
cut to the pith (of something)To focus directly on the essential or core matter(s) of a given topic or issue. Her newest book cuts to the pith of what it means to be human. We are looking for a reporter who will cut to the pith, not fluff their articles with unnecessary details or asides.See also: cut, pithpith of the matterThe core, central, essential, or most important part(s) or element(s) of some matter at hand. I'd love to sit and catch up with you, John, but let's get to the right to pith of the matter and start talking business. Your Honor and the jury will find that the pith of the matter is revealed by this single piece of evidence—the murder weapon, with the suspect's finger prints all over it.See also: matter, of, pithgreat pith and momentHigh importance. A: "Making a speech at your college graduation is an occasion of great pith and moment." B: "I know, and I'm so honored that the committee chose me." Getting engaged is a decision of great pith and moment—do not take it lightly.See also: and, great, moment, pithpith
pith, in botany, core of the stemstem,
supporting structure of a plant, serving also to conduct and to store food materials. The stems of herbaceous and of woody plants differ: those of herbaceous plants are usually green and pliant and are covered by a thin epidermis instead of by the bark of woody plants.
..... Click the link for more information. of most plants. Pith is composed of large, loosely packed food-storage cells. As the stem grows older the pith usually dries out, and in some it disintegrates and the stem becomes hollow. In trees the pith becomes much reduced as the woody tissue (xylem) grows. In East Asia, rice paper is made from the pith of some shrubs. Candlewicks are made of the pith of certain rushes.Pith The central zone of tissue of an axis in which the vascular tissue is arranged as a hollow cylinder. Pith is present in most stems and in some roots. Stems without pith rarely occur in angiosperms but are characteristic of psilopsids, lycopsids, Sphenophyllum, and some ferns. Roots of some ferns, many monocotyledons, and some dicotyledons include a pith, although most roots have xylem tissue in the center. Pith is composed usually of parenchyma cells often arranged in longitudinal files. This arrangement results from predominantly transverse division of pith mother cells near the apical meristem. See Parenchyma, Root (botany), Stem Pith the central portion of a plant stem, consisting of loose parenchymatous tissue. The internal part of the pith sometimes ruptures with age, forming one large air cavity (Labiatae, Um-belliferae, some Gramineae) or several cavities (grape). Roots have no typical pith. Pith usually consists mainly of thin-walled cells, among which there may be lignified thick-walled cells (apple), latex vessels (Campanulaceae, Convulvulaceae), mucous cells (linden), or canals with volatile oils (Compositae, Umbel-liferae). The parenchymatous cells contain reserve starch, which in woody plants is concentrated mainly in external small-celled layers of the pith—the perimedullary zone. Druses or single crystals of calcium oxalate are often found in the pith. pith[pith] (botany) A central zone of parenchymatous tissue that occurs in most vascular plants and is surrounded by vascular tissue. pith  pith The soft central core of a log.pith1. the soft fibrous tissue lining the inside of the rind in fruits such as the orange and grapefruit 2. Botany the central core of unspecialized cells surrounded by conducting tissue in stems 3. the soft central part of a bone, feather, etc. pith
pith (pith), 1. The center of a hair. 2. The spinal cord and medulla oblongata. 3. To pierce the medulla of an animal with a sharp instrument introduced at the base of the skull. [A.S. pitha] pith (pĭth)n.a. The soft inner substance of a feather or hair.b. The spinal cord.tr.v. pithed, pithing, piths To sever or destroy the spinal cord of, usually by inserting a needle into the vertebral canal.pith (pith) 1. The center of a hair. 2. The spinal cord and medulla oblongata. 3. To pierce the medulla of an animal with a sharp instrument introduced at the base of the skull. [A.S. pitha]pith or medulla the core of a DICOTYLEDON stem, containing PARENCHYMA cells that have a storage function.PITH
| Acronym | Definition |
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| PITH➣Pain in the Head | | PITH➣Principal, Interest, Taxes, Heat (mortgage application/qualification) |
pith
Related to pith: pith helmetSynonyms for pithnoun the most central and material partSynonyms- core
- essence
- gist
- heart
- kernel
- marrow
- meat
- nub
- quintessence
- root
- soul
- spirit
- stuff
- substance
- gravamen
Synonyms for pithnoun soft spongelike central cylinder of the stems of most flowering plantsRelated Wordsnoun the choicest or most essential or most vital part of some idea or experienceSynonyms- essence
- heart and soul
- inwardness
- nitty-gritty
- substance
- gist
- kernel
- nub
- meat
- core
- sum
- marrow
- heart
- center
- centre
Related Words- cognitive content
- mental object
- content
- bare bones
- hypostasis
- haecceity
- quiddity
- quintessence
- stuff
verb remove the pith from (a plant)Related Words |