Definition of Ray floret. Meaning of Ray floret. Synonyms of Ray floret
Here you will find one or more explanations in English for the word Ray floret. Also in the bottom left of the page several parts of wikipedia pages related to the word Ray floret and, of course, Ray floret synonyms and on the right images related to the word Ray floret.
Definition of Ray floret
Ray floretRay Ray, n. [OF. rai, F. rais, fr. L. radius a beam or ray,
staff, rod, spoke of a wheel. Cf. Radius.]
1. One of a number of lines or parts diverging from a common
point or center, like the radii of a circle; as, a star of
2. (Bot.) A radiating part of the flower or plant; the
marginal florets of a compound flower, as an aster or a
sunflower; one of the pedicels of an umbel or other
circular flower cluster; radius. See Radius.
(a) One of the radiating spines, or cartilages, supporting
the fins of fishes.
(b) One of the spheromeres of a radiate, especially one of
the arms of a starfish or an ophiuran.
(a) A line of light or heat proceeding from a radiant or
reflecting point; a single element of light or heat
propagated continuously; as, a solar ray; a polarized
(b) One of the component elements of the total radiation
from a body; any definite or limited portion of the
spectrum; as, the red ray; the violet ray. See Illust.
5. Sight; perception; vision; -- from an old theory of
vision, that sight was something which proceeded from the
eye to the object seen.
All eyes direct their rays On him, and crowds turn
coxcombs as they gaze. --Pope.
6. (Geom.) One of a system of diverging lines passing through
a point, and regarded as extending indefinitely in both
directions. See Half-ray.
Bundle of rays. (Geom.) See Pencil of rays, below.
Extraordinary ray (Opt.), that one or two parts of a ray
divided by double refraction which does not follow the
ordinary law of refraction.
Ordinary ray (Opt.) that one of the two parts of a ray
divided by double refraction which follows the usual or
ordinary law of refraction.
Pencil of rays (Geom.), a definite system of rays.
Ray flower, or Ray floret (Bot.), one of the marginal
flowers of the capitulum in such composite plants as the
aster, goldenrod, daisy, and sunflower. They have an
elongated, strap-shaped corolla, while the corollas of the
disk flowers are tubular and five-lobed.
Ray point (Geom.), the common point of a pencil of rays.
R["o]ntgen ray(Phys.), a kind of ray generated in a very
highly exhausted vacuum tube by the electrical discharge.
It is capable of passing through many bodies opaque to
light, and producing photographic and fluorescent effects
by which means pictures showing the internal structure of
opaque objects are made, called radiographs, or sciagraphs
Meaning of Ray floret from wikipedia
- petals. The latter
is the only kind of floret
in the Carduoideae, while
kind is more widespread. Ray florets
are always highly zygomorphic
- disk florets
and one to seven
rows of ray florets
. In the anemone
form, the disk florets
are prominent, often raised
the ray florets
- the older
name Compositae) with both central
and surrounding ray florets
. Each floret
is a flower
in its own right, but is often
- ray florets
. The phyllaries
(a bract under
the flowerhead) has long spreading
hairs. Each phyllary
is ****ociated with a ray
- the wild plant
they have a single
ring of ray florets surrounding
. The disc florets
and hermaphrodite, and generally...
is also a strap-shaped extension
of the corolla, such as that of a ray floret
in the daisy family
Asteraceae. The ligule
is part of the leaf...
- daisy. Gerbera species
bear a large capitulum
with striking, two-lipped ray florets
in yellow, orange, white, pink or red colours. The capitulum, which
- edge and disk florets
in the center. Homogamous heads
are made up of just one type of floret
all ray florets
or all disk florets
head has about
13 to 34 ray florets
more, and rarely
none. The ray florets
are always white
but fade pink with...
- disc florets
over 300. Some species
have ray florets
of yellow, or white
bases. Some species
lack true ray florets
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