THALLUS

thallus

(noun) a plant body without true stems or roots or leaves or vascular system; characteristic of the thallophytes

Source: WordNet® 3.1


Etymology

Noun

thallus (plural thalli)

(botany) An undifferentiated plant body, such as in algae.

(botany) Any plant body lacking vascular tissue.

Source: Wiktionary


Thal"lus, n.; pl. Thalli. Etym: [NL., fr. Gr. (Bot.)

Definition: A solid mass of cellular tissue, consisting of one or more layers, usually in the form of a flat stratum or expansion, but sometimes erect or pendulous, and elongated and branching, and forming the substance of the thallogens.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

5 January 2025

PTEROSAUR

(noun) an extinct reptile of the Jurassic and Cretaceous having a bird-like beak and membranous wings supported by the very long fourth digit of each forelimb


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Coffee Trivia

In 1511, leaders in Mecca believed coffee stimulated radical thinking and outlawed the drink. In 1524, the leaders overturned that order, and people could drink coffee again.

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