12-letter words that end in s
- allosauruses — Plural form of allosaurus.
- alloy wheels — wheels made from an steel alloy, usually of aluminium or magnesium, for improved properties such as reduced weight, better heat conductance and a shiny appearance
- alluringness — The state or quality of being alluring.
- allusiveness — having reference to something implied or inferred; containing, abounding in, or characterized by allusions.
- almightiness — The state or quality of being almighty.
- alpha boötis — Arcturus
- alpha leonis — Regulus1
- alphabetizes — Third-person singular simple present indicative form of alphabetize.
- alphaviruses — Plural form of alphavirus.
- altercations — Plural form of altercation.
- alternations — Plural form of alternation.
- alternatives — a choice limited to one of two or more possibilities, as of things, propositions, or courses of action, the selection of which precludes any other possibility: You have the alternative of riding or walking.
- altitudinous — pertaining to altitude or height
- alto-stratus — a cloud of a class characterized by a generally uniform gray sheet or layer, lighter in color than nimbostratus and darker than cirrostratus: of medium altitude, about 8000–20,000 feet (2450–6100 meters).
- alton towers — a 19th-century Gothic Revival mansion with extensive gardens in NW central England, in Staffordshire: site of a large amusement park
- ambassadress — a woman ambassador
- ambidextrous — Someone who is ambidextrous can use both their right hand and their left hand equally skilfully.
- ambisextrous — Informal. sexually attracted to both sexes; bisexual. used by or suitable for either sex; unisex: ambisextrous hair styles.
- ambitionless — without ambition, unambitious
- ambulatories — Plural form of ambulatory.
- amelogenesis — the production of enamel by ameloblasts
- amenableness — The state or quality of being amenable.
- amentiferous — bearing aments
- americanisms — a custom, trait, belief, etc., peculiar to the United States of America or its citizens.
- americanness — of or relating to the United States of America or its inhabitants: an American citizen.
- amicableness — The state or quality of being amicable.
- aminophenols — Plural form of aminophenol.
- amnioscopies — Plural form of amnioscopy.
- among others — used to indicate that there are several more people like the one or ones mentioned, but that you do not intend to mention them all
- amourousness — Rare spelling of amorousness.
- amphetamines — Plural form of amphetamine.
- amphicarpous — producing two kinds of fruit that differ either in form or in time of ripening.
- amphicoelous — (of the vertebrae of most fishes and some amphibians) concave at the anterior and posterior ends
- amphistomous — (of certain animals, such as leeches) having a sucker at either end of the body
- amphitropous — (of a plant ovule) partially inverted so that the base and the micropyle at the apex are the same distance from the funicle
- ampullaceous — shaped like an ampulla or a bladder
- anacatharsis — severe vomiting
- anachronisms — Plural form of anachronism.
- anachronists — Plural form of anachronist.
- anacrogynous — having the female sex organs arising from any cell below the apex of the stem, thereby not terminating its growth, as certain liverworts.
- anaerobiosis — life in the absence of oxygen
- anaesthetics — the science, study, and practice of anaesthesia and its application
- analyzations — Plural form of analyzation.
- anamorphoses — Plural form of anamorphosis.
- anamorphosis — an image or drawing distorted in such a way that it becomes recognizable only when viewed in a specified manner or through a special device
- anaplasmosis — a disease of cattle caused by a blood-infecting protozoan parasite, Anaplasma marginale, transmitted by bloodsucking flies and ticks.
- androgenesis — a type of reproduction in insects and plants involving the development of an embryo that contains only paternal chromosomes
- anemochorous — (of a fruit, seed, or spore) adapted for dispersion by wind.
- anemophilous — (of flowering plants such as grasses) pollinated by the wind
- anesthetists — Plural form of anesthetist.