rock moss
Lichen Li"chen (l[imac]"k[e^]n; 277), n. [L., fr. Gr. leichh`n.] 1. (Bot.) One of a class of cellular, flowerless plants, (technically called {Lichenes}), having no distinction of leaf and stem, usually of scaly, expanded, frond-like forms, but sometimes erect or pendulous and variously branched. They derive their nourishment from the air, and generate by means of spores. The species are very widely distributed, and form irregular spots or patches, usually of a greenish or yellowish color, upon rocks, trees, and various bodies, to which they adhere with great tenacity. They are often improperly called {rock moss} or {tree moss}. [1913 Webster]

Note: A favorite modern theory of lichens (called after its inventor the Schwendener hypothesis), is that they are not autonomous plants, but that they consist of ascigerous fungi, parasitic on alg[ae]. Each lichen is composed of white filaments and green, or greenish, rounded cells, and it is argued that the two are of different nature, the one living at the expense of the other. See {Hyph[ae]}, and {Gonidia}. [1913 Webster]

2. (Med.) A name given to several varieties of skin disease, esp. to one characterized by the eruption of small, conical or flat, reddish pimples, which, if unchecked, tend to spread and produce great and even fatal exhaustion. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Rock moss — Rock Rock, n. [OF. roke, F. roche; cf. Armor. roc h, and AS. rocc.] 1. A large concreted mass of stony material; a large fixed stone or crag. See {Stone}. [1913 Webster] Come one, come all! this rock shall fly From its firm base as soon as I. Sir …   The Collaborative International Dictionary of English

  • rock moss — noun 1. : a rock loving lichen 2. : widow s cross …   Useful english dictionary

  • Moss — (m[o^]s; 115), n. [OE. mos; akin to AS. me[ o]s, D. mos, G. moos, OHG. mos, mios, Icel. mosi, Dan. mos, Sw. mossa, Russ. mokh , L. muscus. Cf. {Muscoid}.] 1. (Bot.) A cryptogamous plant of a cellular structure, with distinct stem and simple… …   The Collaborative International Dictionary of English

  • Moss agate — Moss Moss (m[o^]s; 115), n. [OE. mos; akin to AS. me[ o]s, D. mos, G. moos, OHG. mos, mios, Icel. mosi, Dan. mos, Sw. mossa, Russ. mokh , L. muscus. Cf. {Muscoid}.] 1. (Bot.) A cryptogamous plant of a cellular structure, with distinct stem and… …   The Collaborative International Dictionary of English

  • Moss animal — Moss Moss (m[o^]s; 115), n. [OE. mos; akin to AS. me[ o]s, D. mos, G. moos, OHG. mos, mios, Icel. mosi, Dan. mos, Sw. mossa, Russ. mokh , L. muscus. Cf. {Muscoid}.] 1. (Bot.) A cryptogamous plant of a cellular structure, with distinct stem and… …   The Collaborative International Dictionary of English

  • Moss berry — Moss Moss (m[o^]s; 115), n. [OE. mos; akin to AS. me[ o]s, D. mos, G. moos, OHG. mos, mios, Icel. mosi, Dan. mos, Sw. mossa, Russ. mokh , L. muscus. Cf. {Muscoid}.] 1. (Bot.) A cryptogamous plant of a cellular structure, with distinct stem and… …   The Collaborative International Dictionary of English

  • Moss campion — Moss Moss (m[o^]s; 115), n. [OE. mos; akin to AS. me[ o]s, D. mos, G. moos, OHG. mos, mios, Icel. mosi, Dan. mos, Sw. mossa, Russ. mokh , L. muscus. Cf. {Muscoid}.] 1. (Bot.) A cryptogamous plant of a cellular structure, with distinct stem and… …   The Collaborative International Dictionary of English

  • Moss land — Moss Moss (m[o^]s; 115), n. [OE. mos; akin to AS. me[ o]s, D. mos, G. moos, OHG. mos, mios, Icel. mosi, Dan. mos, Sw. mossa, Russ. mokh , L. muscus. Cf. {Muscoid}.] 1. (Bot.) A cryptogamous plant of a cellular structure, with distinct stem and… …   The Collaborative International Dictionary of English

  • Moss pink — Moss Moss (m[o^]s; 115), n. [OE. mos; akin to AS. me[ o]s, D. mos, G. moos, OHG. mos, mios, Icel. mosi, Dan. mos, Sw. mossa, Russ. mokh , L. muscus. Cf. {Muscoid}.] 1. (Bot.) A cryptogamous plant of a cellular structure, with distinct stem and… …   The Collaborative International Dictionary of English

  • Moss rose — Moss Moss (m[o^]s; 115), n. [OE. mos; akin to AS. me[ o]s, D. mos, G. moos, OHG. mos, mios, Icel. mosi, Dan. mos, Sw. mossa, Russ. mokh , L. muscus. Cf. {Muscoid}.] 1. (Bot.) A cryptogamous plant of a cellular structure, with distinct stem and… …   The Collaborative International Dictionary of English

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