Klryz
Pronunciation guide: IPA symbols, stress and word endings

Vowels

iːseeɪsite / ɛbedæcat
ɑːfatherɒhot (UK)ɔːlawʊput
uːtooʌcupɜːbirdəabout
eɪdayaɪmyɔɪboyaʊnow
əʊ / oʊgo (UK / US)ɪəneareəhairʊətour

Consonants that look unusual

θthinðthisʃsheʒmeasure
tʃchurchdʒjudgeŋsingjyes

p b t d k g f v s z h m n l r w sound as in ordinary English spelling.

Marks

  • ˈ main stress, before the stressed syllable: /ˈwɔːtə/ water · ˌ lighter (secondary) stress: /ˌʌndəˈstænd/ understand
  • ː a long vowel · (r) an r said only in accents that pronounce it (most American, Scottish, Irish)

Common word endings

  • -s / -es (plurals; he/she form of verbs): /s/ after voiceless sounds (cats), /z/ after voiced (dogs), /ɪz/ after s, z, sh, ch, j sounds (buses, watches). Spelling: -es after s, x, z, ch, sh; consonant + y → -ies (city → cities).
  • -ed (past): /t/ after voiceless sounds (walked), /d/ after voiced (played), /ɪd/ after t or d (wanted). Spelling: love → loved, stop → stopped, carry → carried.
  • -ing: make → making, run → running, see → seeing.
  • Irregular: go, went, gone · be, was, been · see, saw, seen · man → men · child → children · mouse → mice.
  • Older (King James) forms: -eth = -s (he loveth = he loves) · -est with “thou” (thou lovest) · spake = spoke.

English Dictionary · 107,383 entries · Sources & licences

iris diaphragm

noun

Forms iris diaphragms

  1. noun An adjustable diaphragm by which the diameter of an approximately circular opening may be controlled, as for regulating the aperture of a lens; it consists of a number of movable thin curved plates fastened at regular intervals around the inside of a ring, the positions of which are simultaneously adjusted by a single knob on the outside of the lens. It is used in cameras and microscopes.

Synonyms

iris

Etymology

Derives from its action which is reminiscent of the iris of the eye.

Webster’s 1913

  1. An adjustable diaphragm, suggesting the iris of the eye in its action, for regulating the aperture of a lens, consisting of a number of thin pieces fastened to a ring. It is used in cameras and microscopes.

Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “iris diaphragm”, CC BY-SA 4.0. Details