13-letter words containing a, d, p, t, i, o
- drop a stitch — to allow a loop of wool to fall off a knitting needle accidentally while knitting
- dropped waist — the waistline of a dress, gown, or the like when it is placed at the hips rather than at the natural waist.
- endolymphatic — (anatomy) Pertaining to, or containing, endolymph.
- endoparasites — Plural form of endoparasite.
- endoparasitic — Of or pertaining to endoparasites.
- endopeptidase — An enzyme that breaks peptide bonds other than terminal ones in a peptide chain.
- epidotization — the process of changing into epidote
- epitrochoidal — Being or relating to an epitrochoid.
- equiponderant — of the same weight; evenly balanced
- equiponderate — To counterbalance.
- expeditionary — Of or forming an expedition, especially a military expedition.
- exponentiated — Simple past tense and past participle of exponentiate.
- feldspathoids — Plural form of feldspathoid.
- gladiatorship — the work of a gladiator
- gonadotrophic — Of, pertaining to, or stimulating the functions of the gonads.
- gonadotrophin — a gonadotropic substance.
- gonadotropins — Plural form of gonadotropin.
- gradient post — a small white post beside a railway line at a point where the gradient changes having arms set at angles representing the gradients
- heptadecanoic — as in heptadecanoic acid, a saturated fatty acid, aka margaric acid
- hermaphrodite — an individual in which reproductive organs of both sexes are present. Compare pseudohermaphrodite.
- herod antipas — died after a.d. 39, ruler of Galilee, a.d. 4–39: ordered the execution of John the Baptist and participated in the trial of Jesus.
- hydropathical — Alternative form of hydropathic.
- hypohydration — Dehydration.
- ichthyopsidan — a member of the class Ichthyopsida
- isolated pawn — a pawn without pawns of the same colour on neighbouring files
- jodhpuri coat — a coat worn by men in India, similar to but shorter than a sherwani
- latent period — Also, latency period. Pathology. the interval between exposure to a carcinogen, toxin, or disease-causing organism and development of a consequent disease.
- lepidopterans — Plural form of lepidopteran.
- madeira topaz — citrine (def 2).
- maladaptation — incomplete, inadequate, or faulty adaptation.
- moderatorship — The position or office of a moderator.
- nonadsorptive — Not adsorptive.
- nondiplomatic — not diplomatic or related to diplomacy
- open adoption — an arrangement in which contact is maintained or allowed between a child's adoptive and biological parents.
- opinionatedly — In an opinionated manner.
- optical drive — optical disk drive
- optical sound — sound recorded on and subsequently played back from an optical or photographic soundtrack, as opposed to a magnetic soundtrack.
- optical wedge — a wedge-shaped filter whose transmittance decreases from one end to the other: used as an exposure control device in sensitometry.
- orthopaedical — Pertaining to orthopaedics; characteristic of orthopaedia.
- orthopinakoid — a crystalline plane
- painted horse — paint (def 6).
- painted woman — a prostitute; slut.
- pandiculation — the act of stretching oneself.
- panradiometer — an instrument used for measuring radiant heat independently of wavelength
- paradise lost — an epic poem (1667) by John Milton.
- parasitoidism — the feeding by certain insect larvae on host tissues such that the host remains alive until larval development is complete and then usually dies.
- parotid gland — Also called parotid gland. a salivary gland situated at the base of each ear.
- parti-colored — having different colors in different areas or patches; variegated: a parti-colored dress.
- particleboard — a boardlike building material made by compressing sawdust or wood particles with a resin binder
- patriot's day — the third Monday in April, a legal holiday in Me. and Mass. commemorating the battles of Lexington and Concord (April 19, 1775)