Rostellum

The rostellum is a projecting part of the column in Orchidaceae flowers, and separates the male stamen from the female gynoecium, commonly preventing self-fertilisation. In many orchids, such as Orchis mascula, the pollinia or pollen masses, are connected by stipes down to adhesive discs attached to the rostellum which forms cups keeping the discs...
Found on http://en.wikipedia.org/wiki/Rostellum

Rostellum

• (n.) A small beaklike process or extension of some part; a small rostrum; as, the rostellum of the stigma of violets, or of the operculum of many mosses; the rostellum on the head of a tapeworm.
Found on http://thinkexist.com/dictionary/meaning/rostellum/

rostellum

<botany> A beak-like upward extension of the stigma in orchids. ... (09 Oct 1997) ...
Found on http://www.encyclo.co.uk/local/20973

rostellum

(from the article `Orchidales`) In the majority of the orchids, a portion of one of the three stigma lobes forms the rostellum, a flap of tissue that projects down in front of the ...
Found on http://www.britannica.com/eb/a-z/r/69

rostellum

(ros-tel´әm) a small protuberance or beak, especially the fleshy protuberance of the scolex (mouth) of a tapeworm, which may or may not bear hooks.
Found on http://www.encyclo.co.uk/local/21001

Rostellum

[helminth] Rostellum m (meaning `small beak`, from the Latin rostrum for `beak`; pl. rostella) in helminthology is a protruding part of the anterior end of soft-bodied tapeworms. It is a retractable, cone-like muscular structure that is located on the apical end of the scolex, and in most species is armed with hooks, the organs of attachmen...
Found on http://en.wikipedia.org/wiki/Rostellum_(helminth)

Rostellum

Ros·tel'lum noun ; plural Rostella . [ Latin See Rostel .] A small beaklike process or extension of some part; a small rostrum; as, the rostellum of the stigma of violets, or of the operculum of many mosses; the rostellum on the head of a tapeworm.
Found on http://www.encyclo.co.uk/webster/R/95

Rostellum

A little beak; particularly a projection above the stigma in the orchid flower.
Found on http://www.gardenology.org/wiki/Glossary_of_Gardening_Terms

Rostellum

a structure on the column as a little beak a slender extensin from the upper edge of the stigma
Found on http://www.orchidspecies.com/glossary.htm

Rostellum

a structure on the column as a little beak a slender extensin from the upper edge of the stigma
Found on http://orchidfetish.com/glossary.html

rostellum

an organ usually formed from the uppermost margin of the stigma and to which the pollinia usually adhere to after the flower opens
Found on http://www.orchidspng.com/orglosy.html

rostellum

rostellum 1. A small part of an animal or plant that resembles a beak; for example, the hooked projection from the head of a tapeworm. 2. A small beaklike part, such as a projection on the stigma of an orchid, a tubular mouthpart on some insects, or the hooked projection on the head of a tapeworm.
Found on http://www.wordinfo.info/words/index/info/view_unit/710/

rostellum

The area of tissue that separates the stigma from the anther; an adhesive portion of the stigma which aids pollen transfer.
Found on http://www.anbg.gov.au/cpbr/cd-keys/orchidkey/html/glossary.html

rostellum

Type: Term Pronunciation: ros-tel′ŭm Definitions: 1. The anterior fixed or invertible portion of the scolex of a tapeworm, frequently provided with a row (or several rows) of hooks.
Found on http://www.medilexicon.com/medicaldictionary.php?t=79016
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