iris

Betekenis (Engels)

Noun

1. A plant of the genus Iris, common in the northern hemisphere, and generally having attractive blooms (See Iris (plant) on Wikipedia.Wikipedia).
2. The contractile membrane perforated by the pupil, which adjusts to control the amount of light reaching the retina, and which forms the colored portion of the eye (See Iris (anatomy) on Wikipedia.Wikipedia).
3. A diaphragm used to regulate the size of a hole, especially as a way of controlling the amount of light reaching a lens.
4. A rainbow, or other colourful refraction of light.
5. A constricted opening in the path inside a waveguide, used to form a resonator.
6. The inner circle of an oscillated color spot.

Verb

1. To open or close in the manner of an iris.
2. To cause (something) to shine with the colours of the rainbow; to make iridescent.

Sinonieme

flag

fleur-de-lis

iris diaphragm

pupil of eye

sword lily

rainbow

🌈

aperture

flower

🌸

diaphragm

tuberose

blue flag

black check

black square pattern

Newton’s ring

stop

🛑

light rings

calamus

dimmer

eye

👁️

fenestra

opening

orris

pupil

sweet flag

Uitgespreek as (IPA)

/ˈaɪ.ɹɪs/

Etimologie (Engels)

From Middle English [Term?], from Latin īris, from Ancient Greek ἶρις (îris, “rainbow”). Presuming an earlier form *ϝῖρις (*wîris), possibly from a derivative of Proto-Indo-European *w(e)ih₁-ro- (“a twist, thread, cord, wire”), from *weh₁y- (“to turn, twist, weave, plait”). If so, it would be cognate to English wire.