Select a letter for some words
Oblongish
Somewhat oblong.
Obreptitious
Done or obtained by surprise; with secrecy, or by concealment of the truth.
Obsigillation
A sealing up.
Obumbrate
To shade; to darken; to cloud.
Obverse
The face of a coin which has the principal image or inscription upon it; -- the other side being the .
Occision
A killing; the act of killing.
Occult
To eclipse; to hide from sight.
Oceanography
A description of the ocean.
Ocellus
A little eye; a minute simple eye found in many invertebrates.
Ochymy
See .
Octahedrite
Titanium dioxide occurring in acute octahedral crystals.
Odin
The supreme deity of the Scandinavians; -- the same as , of the German tribes.
Odor
Any smell, whether fragrant or offensive; scent; perfume.
Odorine
A pungent oily substance obtained by redistilling bone oil.
Odyssey
An epic poem attributed to , which describes the return of to after the siege of .
offhanded
same as and .
off-white
tending toward white; not pure white.
Old-fashioned
Formed according to old or obsolete fashion or pattern; belonging to or characteristic of times past; adhering to old customs, styles, or ideas; .
old-time
attractively old-fashioned.
Oleamen
A soft ointment prepared from oil.
Oleandrine
One of several alkaloids found in the leaves of the oleander ().
omega
The last letter of the Greek alphabet. See .
Omissive
Leaving out; omitting.
Omniparous
Producing all things; omniparient.
oncoming
the beginning or early stages; the onset.
Oneliness
The state of being one or single.
Ophiurioid
Of or pertaining to the .
ophthalmitis
severe conjunctivitis; ophthalmia.
opianine
An alkaloid () found in small quantity in opium. It is identical with . It is present in amounts up to 11% in , and is used clinically as an antitussive.
Opifice
Workmanship.
Opiniative
Opinionative.
Opye
Opium.
Oratrix
A woman plaintiff, or complainant, in equity pleading.
Orb
To become round like an orb.
Orbitolites
A genus of living , forming broad, thin, circular disks, containing numerous small chambers.
Oreades
A group of butterflies which includes the satyrs. See , 2.
Oreoselin
A white crystalline substance which is obtained indirectly from the root of an umbelliferous plant (), and yields resorcin on decomposition.
ormolu
A variety of brass made to resemble gold by the use of less zinc and more copper in its composition than ordinary brass contains. Its golden color is often heightened by means of lacquer of some sort, or by use of acids. Called also .
Ormuzd
The good principle, or being, of the ancient Persian religion; same as . See also .
orthopy
The art of uttering words correctly; a correct pronunciation of words; also, mode of pronunciation.
Orvet
The blindworm.
Oryctological
Of or pertaining to oryctology.
Osiris
One of the principal divinities of Egypt, the brother and husband of . He was figured as a mummy wearing the royal cap of Upper Egypt, and was symbolized by the sacred bull, called . Cf. .
Osteodentine
A hard substance, somewhat like bone, which is sometimes deposited within the pulp cavity of teeth.
Ouarine
A Brazilian monkey of the genus .
Outburst
A bursting forth; .
Outlook
The act of looking out; watch.
Outstart
To start out or up.
Outstride
To surpass in striding.
Outwork
A minor defense constructed beyond the main body of a work, as a ravelin, lunette, hornwork, etc.
Over
Above, or higher than, in place or position, with the idea of covering; -- opposed to ;
Overcover
To cover up.
Overfierce
Excessively fierce.
Overflourish
To make excessive display or flourish of.
Overflux
Overflow; exuberance.
Overhand
Over and over; -- applied to a style of sewing, or to a seam, in which two edges, usually selvedges, are sewed together by passing each stitch over both.
Overhang
In a general sense, that which just out or projects; a projection; also, the measure of the projection; .
Overhigh
Too high.
Overissue
An excessive issue; an issue, as of notes or bonds, exceeding the limit of capital, credit, or authority.
Overlearned
Too learned.
Overpaint
To color or describe too strongly.
Overpamper
To pamper excessively; to feed or dress too much.
Overpersuade
To persuade or influence against one's inclination or judgment.
Overscrupulousness
The quality or state of being overscrupulous; excess of scrupulousness.
Overshoe
A shoe that is worn over another for protection from wet or for extra warmth; esp., an India-rubber shoe; a galosh.
Overshoot
To shoot over or beyond; to miss; .
oversimplify
to simplify excessively so as to distort or misrepresent; -- of facts, assertions, or communications; .
overutilization
exploitation to the point of diminishing returns.
Overwhelming
Overpowering; irresistible.
Ovist
A believer in ovism. Same as .
Oxlip
The great cowslip (, var. ).
Oxyphenic
Pertaining to, or designating, the phenol formerly called , and now and . See .
Oxyrhyncha
The maioid crabs.