9-letter words containing o, p, e, r, a
- imperator — an absolute or supreme ruler.
- inoperant — Not operant.
- isopteran — a member of the order Isoptera which includes social, colonizing insects such as termites
- jack rope — a rope for bending the foot of a sail to a boom.
- jasperous — Containing jasper, composed of jasper.
- jeoparded — Simple past tense and past participle of jeopard.
- jeoparder — a person who puts in jeopardy
- karyotype — the chromosomes of a cell, usually displayed as a systematized arrangement of chromosome pairs in descending order of size.
- kleopatra — Cleopatra (def 2).
- lager top — a pint or half-pint of lager with a dash of lemonade
- lampooner — Someone who lampoons; someone who pokes fun.
- lamproite — (geology) Any of several volcanic rocks having a high potassium content.
- landloper — a wanderer, vagrant, or adventurer.
- layperson — a person who is not a member of the clergy; one of the laity.
- leakproof — designed to prevent leaking: a leakproof bottle.
- leapfrogs — Plural form of leapfrog.
- leporidae — an animal of the family Leporidae, comprising the rabbits and hares.
- lone pair — shoes, eyes
- loo paper — toilet paper
- lop-eared — having ears that droop or hang down.
- lorazepam — a benzodiazepine drug, C 15 H 10 Cl 2 N 2 O 2 , used chiefly in the management of acute anxiety and for insomnia.
- macropore — Any pore sufficiently wide to allow water to flow unimpeded by capillary action.
- macrotape — (storage) /mak'roh-tayp/ An industry-standard reel of magnetic tape, as opposed to a microtape. See also round tape.
- madperson — (gender-neutral) A madman or madwoman.
- madrepore — any true or stony coral of the order Madreporaria, forming reefs or islands in tropical seas.
- malipiero — Gian Francesco [jahn frahn-che-skaw] /dʒɑn frɑnˈtʃɛ skɔ/ (Show IPA), 1882–1973, Italian composer.
- man power — the power supplied by human physical exertions: an ancient building constructed entirely by man power.
- megaspore — the larger of the two kinds of spores characteristically produced by seed plants and a few fern allies, developing into a female gametophyte. Compare microspore.
- mercapto- — (in chemical compounds) indicating the presence of an HS- group
- meropidan — any insectivorous bird of the family Meropidae
- mesocarps — Plural form of mesocarp.
- metamorph — (biology) An organism that has undergone metamorphosis.
- metaphore — Misspelling of metaphor.
- metaphors — a figure of speech in which a term or phrase is applied to something to which it is not literally applicable in order to suggest a resemblance, as in “A mighty fortress is our God.”. Compare mixed metaphor, simile (def 1).
- microtape — (hardware, storage) /mi:'kroh-tayp/ Occasionally used to mean a DECtape, as opposed to a macrotape. Apparently the term "microtape" was actually the official term used within DEC for these tapes until someone coined the word "DECtape", which, of course, sounded sexier to the marketroids. Another version of the story holds that someone discovered a conflict with another company's "microtape" trademark.
- mousetrap — a trap for mice, especially one consisting of a rectangular wooden base on which a metal spring is mounted.
- name-drop — mention famous person to impress
- nanopores — Plural form of nanopore.
- nephogram — a photograph of a cloud
- neuropath — A person affected by nervous disease, or with an abnormally sensitive nervous system.
- nonpareil — having no equal; peerless.
- nonparent — a person who is not a parent
- nonplayer — a person that is not playing
- notepaper — writing paper, especially that used in writing notes or personal correspondence and usually less than 8½ × 11 inches (21.6 × 27.9 cm) in size.
- oil-paper — a paper made waterproof and translucent by treatment with oil.
- oleograph — a chromolithograph printed in oil colors on canvas or cloth.
- on parade — on display
- on parole — If a prisoner is on parole, he or she is released before the official end of their prison sentence and will not be sent back to prison if their behaviour is good.
- opacifier — an agent added to render something opaque
- opera hat — a man's tall, collapsible top hat, held open or in shape by springs and usually covered with a black, silky fabric. Also called gibus. Compare beaver1 (def 4), silk hat, top hat.