8-letter words containing o, t, l, a
- nontonal — (of music) not written in a specific key
- nonvital — not vital
- nopalito — an edible branch (or cladode) of various cacti of the genus Opuntia (prickly pear), commonly used as a vegetable
- norplant — a contraceptive implant for women surgically inserted under the skin of the upper arm so as to release progesterone or various other steroid hormones gradually over a period of several years
- nostalgy — nostalgia.
- not half — Half is sometimes used in negative statements, with a positive meaning, to emphasize a particular fact or quality. For example, if you say 'he isn't half lucky', you mean that he is very lucky.
- notables — Plural form of notable.
- notarial — of, relating to, or characteristic of a notary public.
- noteable — Misspelling of notable.
- notional — pertaining to or expressing a notion or idea.
- oak wilt — a disease of oaks, characterized by wilting and discoloration of the leaves and defoliation, usually starting at and spreading from the top of the tree and the ends of the branches, caused by a fungus, Chalara quercina.
- oathable — having the ability to take an oath or to be believed while on oath
- oblately — In an oblate manner.
- oblation — the offering to God of the elements of bread and wine in the Eucharist.
- oblatory — Of or pertaining to oblation; oblational.
- obligant — a person who promises or is obliged to pay a sum or carry out a task
- obligate — to bind or oblige morally or legally: to obligate oneself to purchase a building.
- obligato — Alternative spelling of obbligato.
- obstacle — something that obstructs or hinders progress.
- ocellate — (of a spot or marking) eyelike.
- octalogy — (rare) # A set of eight works of art that are connected, and that can be seen either as a single work or as eight individual works. They are commonly found in literature, film, or video games.
- octaloop — (genetics) An eight-base hairpin loop motif.
- octangle — octangular.
- octantal — relating to an octant
- oil tank — any tank for containing or storing oil such as a very large oil storage container at a refinery; a large oil storage area on an oil tanker; or a smaller container for the storage of heating oil at a property
- old fart — fart (def 2).
- old goat — an elderly man who is disliked, especially for being mean to or disapproving of younger people.
- old stoa — the earliest phase of Stoicism, lasting from the latter part of the 4th century to the early part of the 3rd century b.c.
- old talk — (chat) The old implementations of talk. See "ntalk" for details.
- oleaster — an ornamental shrub or small tree, Elaeagnus angustifolia, of Eurasia, having fragrant yellow flowers and an olivelike fruit.
- olefiant — producing or forming oil, most commonly ethylene
- olfactor — A smelling organ; a nose.
- oliphant — Margaret Wilson, 1828–97, Scottish novelist.
- oltipraz — 4-methyl-5-(2-pyrazinyl)-3-dithiolethione, a schistosomicide drug also used in tumour prevention.
- omoplate — the shoulder blade
- on alert — If soldiers or police are on alert, they are ready to deal with anything that may happen.
- on trial — Law. the examination before a judicial tribunal of the facts put in issue in a cause, often including issues of law as well as those of fact. the determination of a person's guilt or innocence by due process of law.
- onolatry — Worship of the ass or donkey.
- oppilant — blocking, hindering, or obstructing
- oppilate — to stop up; fill with obstructing matter; obstruct.
- opticals — (India) spectacles.
- optional — left to one's choice; not required or mandatory: Formal dress is optional.
- orbitale — Craniometry, Cephalometry. the lowermost point on the lower margin of the left orbit, located instrumentally on the skull or by palpation on the head.
- orbitals — Plural form of orbital.
- oriental — (usually initial capital letter) of, relating to, or characteristic of the Orient, or East; Eastern.
- orlistat — A drug designed to treat obesity.
- ornately — elaborately or sumptuously adorned, often excessively or showily so: They bought an ornate Louis XIV sofa.
- ortolans — Plural form of ortolan.
- osculant — united by certain common characteristics.
- osculate — to come into close contact or union.