a. (sb.) Path. [ad. L. subintrant-em, pr. pple. of subintrāre to steal into, f. sub- SUB- 24 + intrāre to ENTER. Cf. F. subintrant, It. subentrante.] Of fevers: Having paroxysms so rapidly that before one is over another begins; also said of the paroxysms. b. sb. A subintrant fever.

1

1684.  trans. Bonet’s Merc. Compit., VI. 231. In a subintrant (that is, when one fit comes before the other is off).

2

1747.  trans. Astruc’s Fevers, 102. A subintrant tertian.

3

1886.  Lond. Med. Rec., 15 Oct., 463/1. The hysterical attacks at this juncture were constant, sometimes subintrant.

4

1897.  Allbutt’s Syst. Med., II. 317. A remittent of the double tertian type, or double tertian with subintrant paroxysms. Ibid. (1899), VIII. 467. The fever … may be confined only to the eruptive period, and be ephemeral, remittent, subintrant [&c.].

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