| knuckle down |
to start working in a concentrated manner; apply oneself seriously. |
| knucklehead |
(informal) a stupid, inept person; fool. |
| knuckle joint |
any joint between two bones that forms a knuckle. [2 definitions] |
| knuckle under |
to give in under pressure; yield. |
| knurl |
a knot or protuberance, as on a tree; gnarl. [3 definitions] |
| knurled |
having small ridges. [2 definitions] |
| knurly |
being full of knurls or knots; gnarled. |
| KO |
abbreviation of "knockout," in boxing, the act of defeating an opponent by knocking him down for a count of ten. (See technical knockout.) |
| koala |
a furry marsupial, native to Australia, that climbs trees and feeds on eucalyptus leaves and bark; koala bear. |
| koan |
in Zen Buddhism, a nonsense question or paradox used as an aid to meditation in order to encourage a greater awareness of reality. |
| kobo |
the smaller monetary unit of Nigeria. (Cf. naira.) |
| kobold |
in Germanic folklore, a spirit or elf that haunts households. [2 definitions] |
| Kodiak bear |
an extremely large brown bear of coastal Alaska and British Columbia. |
| Kohinoor |
a large Indian diamond that is included in the British crown jewels. |
| kohl |
a powdered substance used esp. by women in some Eastern countries as eye makeup. |
| kohlrabi |
a plant of the cabbage family that has a bulbous, edible stem. |
| Kohoutek |
a comet first observed in 1973 and visible into 1974. |
| koine |
(sometimes cap.) the colloquial form of Greek widely spoken during the Hellenistic period and the period of the Roman Empire (often prec. by "the"). [2 definitions] |
| kola |
an extract prepared from the kola nut, used in beverages and medicines. [2 definitions] |
| kola nut |
the seed of the kola tree, which contains caffeine and theobromine and is used in soft drinks and medicines. |
| kolinsky |
any of several minks of northern Eurasia. [2 definitions] |