pulsellumn.

Brit.

/pʌlˈsɛləm/, U.S.

/pəlˈsɛl(ə)m/

Inflections: Plural pulsella.

Origin: A borrowing from Latin, combined with an English element. Etymons: Latin puls- , pellere , -ellum suffix.

Etymology: < classical Latin puls-, past participial stem of pellere to drive (see pulse v.) + -ellum suffix, after flagellum n. Compare tractellum n.

Biology. Now rare.

A flagellum, esp. one that propels a cell from behind. Cf. tractellum n.

ΘΚΠ

the world > animals > animal body > general parts > [noun] > tail- or lash-like

tailet1817

flagellum1852

pulsellum1880

the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > sperm > spermatozoon > part of or structure found in

pulsellum1880

1880–1 W. Saville-Kent Man. Infusoria I. 429 Among the free-swimming monoflagellate Infusoria as at present known, where the locomotive appendage without exception fulfils during natation the rôle of a tractellum, its recognition by such title in contradistinction to a propelling organ or pulsellum is uncalled for.

1885 Encycl. Brit. XIX. 859/1 The flagellum of the Flagellata is totally distinct from the pulsellum of the Bacteria.

1915 Proc. Royal Soc. B. 88 358 There is certainly no vibration of the free distal part of the flagellum at all; in this method of movement, the flagellum does not act as a pulsellum.

1935 Biol. Bull. 68 429 The insertion of the trailing flagellum (pulsellum) has not been determined.

This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022).

单词	pulsellum
释义	pulsellumn. Brit. /pʌlˈsɛləm/, U.S. /pəlˈsɛl(ə)m/ Inflections: Plural pulsella. Origin: A borrowing from Latin, combined with an English element. Etymons: Latin puls- , pellere , -ellum suffix. Etymology: < classical Latin puls-, past participial stem of pellere to drive (see pulse v.) + -ellum suffix, after flagellum n. Compare tractellum n. Biology. Now rare. A flagellum, esp. one that propels a cell from behind. Cf. tractellum n. ΘΚΠ the world > animals > animal body > general parts > [noun] > tail- or lash-like tailet1817 flagellum1852 pulsellum1880 the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > sperm > spermatozoon > part of or structure found in pulsellum1880 1880–1 W. Saville-Kent Man. Infusoria I. 429 Among the free-swimming monoflagellate Infusoria as at present known, where the locomotive appendage without exception fulfils during natation the rôle of a tractellum, its recognition by such title in contradistinction to a propelling organ or pulsellum is uncalled for. 1885 Encycl. Brit. XIX. 859/1 The flagellum of the Flagellata is totally distinct from the pulsellum of the Bacteria. 1915 Proc. Royal Soc. B. 88 358 There is certainly no vibration of the free distal part of the flagellum at all; in this method of movement, the flagellum does not act as a pulsellum. 1935 Biol. Bull. 68 429 The insertion of the trailing flagellum (pulsellum) has not been determined. This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022). < n.1880
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