K2

 Dictionary entry overview: What does K2 mean? 

• K2 (noun)
  The noun K2 has 1 sense:

1. a mountain peak in the Karakoram Range in northern Kashmir; the 2nd highest peak in the world (28,250 feet high)

  Familiarity information: K2 used as a noun is very rare.

 Dictionary entry details 

• K2 (noun)

Sense 1

Meaning:

A mountain peak in the Karakoram Range in northern Kashmir; the 2nd highest peak in the world (28,250 feet high)

Classified under:

Nouns denoting natural objects (not man-made)

Synonyms:

Dapsang; Godwin Austen; K2; Mount Godwin Austen

Instance hypernyms:

mountain peak (the summit of a mountain)

Holonyms ("K2" is a part of...):

Karakoram; Karakoram Range; Karakorum Range; Mustagh; Mustagh Range (a mountain range in northern Kashmir; an extension of the Hindu Kush; contains the 2nd highest peak)

 Context examples 

An international team of astronomers has discovered and confirmed a treasure trove of new worlds using NASA's Kepler spacecraft on its K2 mission.

(Kepler Confirms 100+ Exoplanets During Its K2 Mission, NASA)

The science team says there are two main theories that may explain how K2-33b wound up so close to its star.

(NASA's K2 Finds Newborn Exoplanet Around Young Star, NASA)

Named K2-229b, the planet is almost 20% larger than Earth but has a mass which is over two-and-a-half times greater — and reaches a dayside temperature of over 2000°C (2330 Kelvin).

(Mercury Not as Rare as Previously Thought, The Titi Tudorancea Bulletin)

The new world, known as K2-288Bb, could be rocky or could be a gas-rich planet similar to Neptune.

(Citizen Scientists Find New World with NASA Telescope, NASA)

Since then, they have named it K2-138 and determined that it has a fifth planet — and perhaps even a sixth, according to the new paper.

(Multi-planet System Found Through Crowdsourcing, NASA)

During its first observing campaign, K2 trained its gaze on a patch of sky in the constellation Virgo, measuring the minuscule change in brightness of the distant white dwarf.

(K2 Finds Dead Star Vaporizing a Mini 'Planet', NASA)

A menaquinone compound and form of vitamin K2 with potential antineoplastic activity.

(Menatetrenone, NCI Thesaurus)

During the period of Dec. 15, 2016 and March 4, the Kepler spacecraft, operating as the K2 mission, observed TRAPPIST-1 for 74 days.

(Light From An Ultra-Cool Neighbor, NASA)

Given the high level of activity of its red dwarf star, K2-18b may be more hostile to life as we know it than Earth, as it is likely to be exposed to more high-energy radiation.

(Hubble Finds Water Vapor on Habitable-Zone Exoplanet for 1st Time, NASA)

MEK1/2 (MAP2K1/K2) are dual-specificity threonine/tyrosine kinases that play key roles in the activation of the RAS/RAF/MEK/ERK pathway and are often upregulated in a variety of tumor cell types.

(MEK Inhibitor TAK-733, NCI Thesaurus)