(in many tropical and epiphytic orchids) a bulb-like swelling of a stem
pseudobulb in American English
(ˈsuːdəˌbʌlb)
noun
an enlarged, aboveground portion of stem, present in many tropical orchids, in which moisture is stored
Word origin
[1825–35; pseudo- + bulb]This word is first recorded in the period 1825–35. Other words that entered Englishat around the same time include: archaic, cliché, individualism, panda, runwaypseudo- is a combining form meaning “false,” “pretended,” “unreal,” used in the formationof compound words (pseudoclassic; pseudointellectual); in scientific use, pseudo- denotes close or deceptive resemblance to the following element (pseudobulb; pseudocarp), and is used sometimes in chemical names of isomers (pseudoephedrine)
Examples of 'pseudobulb' in a sentence
pseudobulb
The orchid species demonstrated aseasonal vegetative phenologies, except for pseudobulb emission.
Karoline Coutinho de Santana, Isys Mascarenhas Souza, Lia d'Afonsêca Pedreira de Miranda,Ligia Silveira Funch 2016, 'Phenodynamics of five orchids species growing on rock outcrops in the Chapada DiamantinaMountains in northeastern Brazil', Acta Botânica Brasílicahttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016005008103&lng=en&tlng=en. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Cells of various dimensions, with thin walls, compose the fundamental parenchyma of the pseudobulb.
Michelli Fernandes, Maria Auxiliadora Milaneze Gutierre, Ângela Maria Marques Sanches-Marques,Greta Aline Dettke 2008, 'Morfoanatomia dos órgãos vegetativos de Miltonia regnellii (Lindl.) Rchb.f. (Oncidiineae, Orchidaceae) - DOI: 10.4025/actascibiolsci.v30i1.1407 Morphoanatomiccharacterization of the vegetative organs of Miltonia regnellii (Lindl.)Rchb. f. (Oncidiineae, Orchidaceae) - DOI: 10.4025/actascibiolsci.v30i1.1407',Acta Scientiarum : Biological Scienceshttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1407. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Likewise, the pseudobulb pith explants showed increased callus formation (10.8%) in comparison to leaf explants (7.6%).
Ana Gabriela Coutiño-Cortés, Vincenzo Bertolini, Leobardo Iracheta Donjuan, LorenaRuíz-Montoya, Javier Francisco Valle-Mora 2017, 'In vitro callogenesis induction of Guarianthe skinneri (Bateman) Dressler & W.E. Higgins(Orchidaceae)', Acta Agronómicahttps://revistas.unal.edu.co/index.php/acta_agronomica/article/view/57982. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
In each pseudobulb there were 15 flowers on average, it being possible to reach 31 flowers per pseudobulb.
Ricardo Tadeu de Faria, Lúcia SA Takahashi, Alessandro B Lone 2009, 'UEL 6: nova cultivar de Dendrobium UEL 6: a new Dendrobium cultivar', Horticultura Brasileirahttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362009000100023. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)