tylosis

American  

[tahy-loh-sis] / taɪˈloʊ sɪs /

Often tylose

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.

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tylosis British  

/ taɪˈləʊsɪs /

noun

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

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Etymology

Origin of tylosis

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

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 Anomalies and Curiosities of Medicine by Pyle, Walter L. (Walter Lytle)