सिद्धान्तशिरोमणि: गणिताध्याय (भास्कराचार्य - ग्रहगणित, मध्यमाधिकार व स्पष्टाधिकार सटीक)

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45. Karṇāgrajyā or : The Hindu sine Agrajyā multiplied by K,
simply Karṇāgrā and divided by R where K is the hypotenuse
of the gnomonic triangle whose two sides
are the gnomon and its shadow and R the
radius of the celestial sphere taken to be
3438 units.
46. Kendra : The centre of a circle.
47. Ketu : The diametrically opposite point of Rāhu.
Rāhu also means the circular section of the
earth’s shadow at the Moon.
48. Kha-Svastika : The Zenith at a place.
49. Koṭijyā : Hindu Cosine of an angle.
50. Krānti or Apama: The declination of a point on the ecliptic.
51. Krānti-Vṛttam : Ecliptic.
52. Kṛtayuga : Four times the period of a Kaliyuga.
53. Kṣayamāsa : That lunar month in which there are two
Saṁkramaṇas.
54. Kṣitija : The Horizon at a place.
55. Kujyā : The Hindu sine measured in the diurnal
circle corresponding to the Carajyā defined
above.
56. Lagna : The Rāśi which rises at any moment or the
rising point of the ecliptic.
57. Lambajyā : The Hindu Cosine of the latitude.
58. Lambana : Parallax in longitude.
59. Mahāyuga : The Sum of the four yugas mentioned above.
60. Manvantara : A period equal to 71 Mahāyugas.