tylosis

Often ty·lose

[tahy-loh-sis]

noun

Botany.

plural

tyloses 

1. a bubblelike formation in the cavity of tracheids or vessels in the wood of trees, consisting of protoplasm intruded from adjacent parenchyma cells.

tylosis

/ taɪˈləʊsɪs /

noun

1. botany a bladder-like outgrowth from certain cells in woody tissue that extends into and blocks adjacent conducting xylem cells

Word History and Origins

Origin of tylosis¹

1875–80; < Greek týlōsis act of making callous, equivalent to tylō-, variant stem of tyloûn to make callous, hard, derivative of týlos callus, lump, knob + -sis -sis

Word History and Origins

Origin of tylosis¹

C19: from Greek tulōsis, from tulos knob or tulē callus + _-osis

Example Sentences

Crocker had an instance of this nature in a man with tylosis palmae, in which the skin was cast off every autumn, but the process lasted two months.

From Project Gutenberg