postrorse

\\ˈpōˌstrȯrs, ˈpä-\ adverb

Etymology: post- + -rorse (as in antrorse)

: retrorse — opposed to antrorse

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/pos"trawrs, po strawrs"/, adj.

directed backward.

[1885-90; < L post(erus) behind + (RET)RORSE]

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postrorse, a.

(pɒˈstrɔːs)

[ad. mod.L. postrorsus, f. postero- + versus turned: cf. antrorse.]

Turned or bent backward; retrorse.

in Cent. Dict., etc.