9-letter words containing p, e, r, i
- interlope — to intrude into some region or field of trade without a proper license.
- interpage — to print (matter) on intervening pages
- interpeak — Between peaks.
- interplay — reciprocal relationship, action, or influence: the interplay of plot and character.
- interpled — having instituted interpleader proceedings
- interpone — to interpose
- interpose — to place between; cause to intervene: to interpose an opaque body between a light and the eye.
- interpret — to give or provide the meaning of; explain; explicate; elucidate: to interpret the hidden meaning of a parable.
- interrupt — to cause or make a break in the continuity or uniformity of (a course, process, condition, etc.).
- ionophore — a lipid-soluble substance capable of transporting specific ions through cellular membranes.
- ip number — internet address
- iprindole — a tricyclic antidepressant drug. Formula: C19H28N2
- ipso jure — by the law itself; by operation of law.
- irruptive — of, relating to, or characterized by irruption.
- isentrope — a line on a map or chart joining points having equal entropy.
- isopteran — a member of the order Isoptera which includes social, colonizing insects such as termites
- issue par — an equality in value or standing; a level of equality: The gains and the losses are on a par.
- ivorytype — an antiquated photoprinting technique in which two prints are made of the same image, and the weaker one, made transparent with varnish and colored on the back, is laid over the stronger one.
- jasperite — Jasper (the gem).
- jasperize — To convert into, or make to resemble, jasper.
- jump wire — jumper1 (def 6).
- kidnapers — Plural form of kidnaper.
- kidnapper — to steal, carry off, or abduct by force or fraud, especially for use as a hostage or to extract ransom.
- kippering — Present participle of kipper.
- kraepelin — Emil [ey-meel] /ˈeɪ mil/ (Show IPA), 1856–1926, German psychiatrist.
- lamproite — (geology) Any of several volcanic rocks having a high potassium content.
- leporidae — an animal of the family Leporidae, comprising the rabbits and hares.
- leprosity — the state of being leprous
- lexigraph — A lexigram or ideograph, a graphical depiction of a single word.
- lie group — a topological group that is a manifold.
- life peer — a peer whose title ceases at death; nonhereditary peer.
- limber up — characterized by ease in bending the body; supple; lithe.
- line drop — the decrease in voltage between two points on an electric line, often caused by resistance or leakage along the line.
- linotyper — a person who uses a Linotype printing machine
- liripipes — Plural form of liripipe.
- live trap — a trap for capturing a wild animal alive and without injury.
- liverpool — a seaport in Merseyside, in W England, on the Mersey estuary.
- lone pair — shoes, eyes
- lypressin — Lysine vasopressin.
- magstripe — Magnetic stripe.
- mainprise — (legal, historical) A writ directed to the sheriff, commanding him to take sureties, called mainpernors, for the prisoner's appearance, and to let him go at large.
- malipiero — Gian Francesco [jahn frahn-che-skaw] /dʒɑn frɑnˈtʃɛ skɔ/ (Show IPA), 1882–1973, Italian composer.
- mapepires — Plural form of mapepire.
- meiospore — a haploid spore resulting from meiosis
- mepacrine — The drug quinacrine.
- merit pay — an additional sum paid to an employee, as a schoolteacher, whose work is superior and whose services are valued.
- meropidan — any insectivorous bird of the family Meropidae
- metacarpi — Plural form of metacarpus.
- micropore — a tiny opening, as in specialized biological filters or in the shells of some animals.
- micropyle — Zoology. any minute opening in an ovum through which a spermatozoon can enter, as in many insects.