| NW |
abbreviation of "northwest." |
| NY |
abbreviation of "New York," an eastern U.S. state between the Great Lakes and the Atlantic; New York State |
| nyala |
an East African antelope with spiral horns and with white stripes on the sides of its grayish coat. |
| nyctalopia |
abnormally poor eyesight in dim light or darkness; night blindness. |
| nyctitropism |
the tendency of certain plants' leaves or petals to take a different position at night. |
| nyctophobia |
an abnormal fear of darkness or night. |
| nylghai |
variant of nilgai. |
| nylon |
a strong, light, synthetic fiber used to make yarn, cloth, bristles, and the like. [3 definitions] |
| nymph |
in Greek and Roman mythology, any of numerous minor goddesses inhabiting and representing rivers, mountains, trees, and the like. [3 definitions] |
| nymphet |
a pubescent girl, often sexually precocious, who is considered sexually attractive. |
| nymphomania |
abnormal or insatiable sexual desire in women. |
| NYSE |
abbreviation of "New York Stock Exchange." |
| nystagmus |
an involuntary twitching or vibrating movement of the eyeball, usu. from side to side. |
| nystatin |
a yellowish antibiotic powder used to cure certain fungal infections, esp. of the skin and mucous membranes. |
| O1 |
in poetry, prayer, or solemn address, used before the name of the person or thing being spoken to. [2 definitions] |
| O2 |
symbol of the chemical element oxygen. |
| o |
the fifteenth letter of the English alphabet. [4 definitions] |
| o- |
away; against. |
| oaf |
a stupid, rudely unpleasant, or bumbling person; blockhead. |
| oak |
a tree that belongs to the beech family and bears acorns. [2 definitions] |
| oak apple |
a harmless, applelike gall produced on oak trees by the larvae of a type of wasp. |