Crossword clues for pollen
Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Pollen \Pol"len\, n. [L. pollen fine flour, fine dust; cf. Gr. ?]
Fine bran or flour. [Obs.]
(Bot.) The fecundating dustlike cells of the anthers of flowers. See Flower, and Illust. of Filament.
Pollen grain (Bot.), a particle or call of pollen.
Pollen mass, a pollinium.
Pollen sac, a compartment of an anther containing pollen, -- usually there are four in each anther.
Pollen tube, a slender tube which issues from the pollen grain on its contact with the stigma, which it penetrates, thus conveying, it is supposed, the fecundating matter of the grain to the ovule.
Douglas Harper's Etymology Dictionary
1760 as a botanical term for the fertilizing element of flowers (from Linnæus, 1751), earlier "fine flour" (1520s), from Latin pollen "mill dust; fine flour," related to polenta "peeled barley," and pulvis (genitive pulveris) "dust," from PIE root *pel- (1) "dust; flour" (cognates: Greek poltos "pap, porridge," Sanskrit pálalam "ground seeds," Lithuanian pelenai, Old Church Slavonic popelu, Russian pépelŭ "ashes").
n. 1 Fine powder in general, fine flour (16th century usage documented by OED; no longer common.) 2 A fine granular substance produced in flowers. Technically a collective term for pollen grains (microspores) produced in the anthers of flowering plants. (This specific usage dating from mid 18th century.)
n. the fine spores that contain male gametes and that are borne by an anther in a flowering plant
Pollen is a fine to coarse powdery substance comprising pollen grains which are male microgametophytes of seed plants, which produce male gametes (sperm cells). Pollen grains have a hard coat made of sporopollenin that protects the gametophytes during the process of their movement from the stamens to the pistil of flowering plants or from the male cone to the female cone of coniferous plants. If pollen lands on a compatible pistil or female cone, it germinates, producing a pollen tube that transfers the sperm to the ovule containing the female gametophyte. Individual pollen grains are small enough to require magnification to see detail. The study of pollen is called palynology and is highly useful in paleoecology, paleontology, archaeology, and forensics.
Pollen in plants is used for transferring haploid male genetic material from the anther of a single flower to the stigma of another in cross-pollination. In a case of self-pollination, this process takes place from the anther of a flower to the stigma of the same flower.
Pollen is a 1995 science fiction novel written by British author Jeff Noon.
Pollen was a power pop band originally hailing from Pittsburgh, Pennsylvania. They released four albums and two split records over their eight years.
Pollen may refer to:
- Pollen, powder used in plant reproduction
- Pollen Island, island in New Zealand
- Pollen (band), a power pop band from Pennsylvania
- Pollen (Canadian band), a progressive rock band from Québec
- Pollen (novel), a 1995 science fiction novel by Jeff Noon
- Pollen (film), a 2011 documentary film by Disneynature
- Dander, "pet pollen", material shed from the body of various animals, similar to dandruff
- Pollen (video game), a sci-fi video game
- Daniel Pollen, the ninth Premier of New Zealand
- Arthur Pollen, a writer on naval affairs
- Pollen Ndlanya, a retired South African football player
- Ole Petter Pollen, a Norwegian sailor
- Arabella Rosalind Hungerford Pollen, an English couturier and author
- Geir Pollen, a Norwegian poet, novelist and translator
- John Hungerford Pollen (senior), an English artist and writer on crafts and furniture
- Murder of Daniel Pollen, an English university student (1985–2005) who was murdered in an unprovoked attack in 2005
Pollen is a first-person sci-fi mystery exploration video game developed by Finnish company Mindfield Games for Microsoft Windows and Playstation 4. Pollen is playable on regular monitors and Oculus Rift virtual reality headsets (beta), and will be playable on HTC Vive.
The game takes place in an alternate timeline of humanity's history, on a research base called Station M found on Saturn's largest moon Titan. The gameplay centers around semi-linear first person exploration, allowing the player to discover the story through puzzles and interacting with the objects around them.
Usage examples of "pollen".
Planting new male mulberry trees is prohibited by law because their pollen is a powerful allergen, and Tucson gains profit and riches as a refuge for allergy sufferers and hypochondriacs.
Sprengel has shown, and as I can confirm, either the anthers burst before the stigma is ready for fertilisation, or the stigma is ready before the pollen of that flower is ready, so that these plants have in fact separated sexes, and must habitually be crossed.
For in continuance of the vertical principle of the plant, the pistil and carpel represent the male aspect in the process of spiritual anastomosis, and the mobile, wind- or insect-borne pollen, in continuing the spiral principle, represents the female part.
She had no more blossomy openings dusting pollen over her man, neither any glistening young fruit where the petals used to be.
This pollen from the transgenetic corn, or TG corn, then lands in the milkweed that surrounds most cornfields.
Oh, yes, I suspect a few butterflies have died from eating milkweed with TG corn pollen on it.
In the case of the misseltoe, which draws its nourishment from certain trees, which has seeds that must be transported by certain birds, and which has flowers with separate sexes absolutely requiring the agency of certain insects to bring pollen from one flower to the other, it is equally preposterous to account for the structure of this parasite, with its relations to several distinct organic beings, by the effects of external conditions, or of habit, or of the volition of the plant itself.
Franklin Reynolds, of this town, crossed the Cannon-Ball Cabbage on the Schweinfurt Quintal, by carefully transferring the pollen of the former on the latter, the stamens having first been removed, and immediately tying muslin around the impregnated blossoms to keep away all insects.
Most of them the result of placing bitternut hickory pollen on staminate butternut flowers.
Some of them might have weathered a Ghost Wind, an unseasonable release of kireseth pollen.
Then kicking the wounded basket a vicious blow with the toe of his boot, he spun on his heels, leaped on the bare back of the Andalusian stallion, and galloped off in a shower of churned-up sod and pollen spores, coattails flying.
Hush knew how to site an orchard, how to make a graft take life on the rootstock, how to draw bees covered in pollen every spring, how to store apples for months every winter.
Taking full advantage of the weather, wild bees were frantically gathering nectar and pollen before winter descended and shut off their supply until spring.
The bees occupied room-sized chambers in which standard wood Langstroth hives bad been placed, with combs filled with honey, and pollen hung on the back walls, which opened into the flying area.
These bees gather pollen but no honey, and therefore must be dumb in the deepest sense of the word.