samāpatti: 'attainments', is a name for the 8 absorptions of the fine-material and immaterial spheres to which occasionally is added as 9th attainment, attainment of extinction (nirodhasamāpatti) Cf. jhāna.

Buddhist Dictionary, Manual of Buddhist Terms and Doctrines, by NYANATILOKA MAHATHERA

三摩鉢底  A transliteration of the Sanskrit samāpatti.

等至  Chinese translation of the Sanskrit samāpatti.

samāpatti

(Sanskrit; Pāli). Attainment or equipoise; a state where the body and mind abide in a state of tranquil composure. Often, samāpatti refers to the four trances (dhyānas), the four levels of the Formless Realm (ārūpya-dhātu), and the state of cessation (nirodha-samāpatti). It is also used as an equivalent to samādhi.

A Dictionary of Buddhism, Oxford University Press, 2003, 2004 (which is available in electronic version from answer.com)

samāpatti : [f.] attainment; an enjoying stage of meditation.

A.P. Buddhadatta Mahathera, Concise Pali-English and English-Pali Dictionary [available as digital version from Metta Net, Sri Lanka]

Samāpatti (f.) [fr. saŋ+ā+pad] attainment A iii.5; S ii.150 sq.; iv.293 (saññā -- vedayita -- nirodha˚); Dhs 30= 101; a stage of meditation A i.94; Dhs 1331; J i.343, 473; PvA 61 (mahā -- karuṇā˚); Nd1 100, 106, 139, 143; the Buddha acquired anekakoṭisata -- sahassā s. J i.77. The eight attainments comprise the four Jhānas, the realm of the infinity of space, realm of the infinity of consciousness, realm of nothingness, realm of neither consciousness nor unconsciousness Ps i.8, 20 sq.; Nd1 108, 328; Bu 192=J i.28, 54; necessary for becoming a Buddha J i.14; acquired by the Buddha J i.66; the nine attainments, the preceding and the trance of cessation of perception and sensation S ii.216, 222; described M i.159 sq. etc.; otherwise called anupubbavihārā D ii.156; A iv.410, 448 & passim [cp. Divy 95 etc.]. -- In collocation with jhāna, vimokkha, and samādhi Vin i.97; A iii.417 sq.; cp. Cpd. 59, 133 n. 3. -- ˚bhāvanā realizing the attainments J i.67; ˚kusalatā success in attainment D iii.212; Dhs 1331 sq.

Pali-English Dictionary, TW Rhys Davids, William Stede,

samāpatti: Attainment. ln particular, it refers to the nine meditation attainment: four dhyāna-s pertaining to the rūpa-dhātu, four ārūpya samāpatti-s, and nirodha-samāpatti.

Sarvastivada Abhidharma, Sanskrit-English Glossary, by Bhikkhu KL Dhammajoti

sam-āpatti f. coming together, meeting, encountering Kālid
• accident, chance ( See comp.)
• falling into any state or condition, getting, becoming (comp.) Yogas
• assuming an original form, APrāt
• completion, conclusion Āpast. (vḷ. sam-āpti)
• yielding, giving way (in a-s○) ib. [Page 1161, Column 2]
• (with Buddhists) a subdivision of the fourth stage of abstract meditation (there are eight Samāpattis) MWB. 233
• -dṛṣṭa mfn. seen by chance Daś

Sanskrit-English Dictionary, by M. Monier William

mnyam par bzhag par

[translation-san] {C} samāpadyanatā (=samāpatti)

[translation-san] {C} samāpadyanatā (=samāpatti)

[translation-eng] {Hopkins} meditative equipoise

[translation-eng] {C} attainment

Jeffrey Hopkins' Tibetan-Sanskrit-English Dictionary

snyoms 'jug

[translation-san] {LCh} samāpatti

[translation-eng] {Hopkins} absorption; meditative absorption

[translation-eng] attainment

synonym

• [bod] snyoms par 'jug pa

Jeffrey Hopkins' Tibetan-Sanskrit-English Dictionary

snyoms 'jug pa

[translation-san] {C} samāpatti

[translation-eng] {Hopkins} a meditator Nihilist; absorption; meditative absorption; Meditator [Nihilist]

[translation-eng] {C} attainment

[comments] one of the two types of Nihilists

Jeffrey Hopkins' Tibetan-Sanskrit-English Dictionary

snyoms par 'jug pa

[translation-san] {LCh,L,MSA} samāpatti

[translation-eng] {Hopkins} absorption; meditative absorption

[translation-eng] attainment

Jeffrey Hopkins' Tibetan-Sanskrit-English Dictionary