• Webster's Revised Unabridged Dictionary
    • n. pl Holotricha (Zoöl) A group of ciliated Infusoria, having cilia all over the body.
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Century Dictionary and Cyclopedia
    • holotricha An order of free-swimming infusorians, more or less completely ciliate throughout. The cilia differ but slightly one from another, and are sometimes supplemented by a variously modified extensile or undulating membrane. The oral and anal orifices are usually conspicuously developed. The cuticular layer or ectoplasm not unfrequently contains trichocysts. The order is contrasted with Heterotricha, Hypotricha, and Peritricha.
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Webster's Revised Unabridged Dictionary
NL., fr. Gr. "o`los whole + qri`x tricho`s, a hair


In literature:

With the Gymnostomaceae it formed the Holotricha of Stein.
"Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7" by Various