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Related to pyriform: clavate, piriform, pyriform lobe


Shaped like a pear.

[Medieval Latin pyrum, pear (alteration of Latin pirum; see pear) + -form.]




(Anatomy) (esp of organs of the body) pear-shaped
[C18: from New Latin pyriformis, from pyri-, erroneously from Latin pirum pear + -formis -form]


(ˈpɪr əˌfɔrm)

[1695–1705; < New Latin pyriformis=pyri- (for piri-; Latin pir(um) pear + -i- -i-) + -formis -form]
References in periodicals archive ?
One patient had not only extracapsular fibrous adipose tissue and striated muscle invasion but also invasion of the subcutaneous tissue, ipsilateral pyriform sinus, prevertebral muscle, and esophageal muscle.
Effect of ablating the frontal lobes, hippocampi, and occipito-parieto-temporal (excepting pyriform areas) lobes on positive and negative olfactory conditioned reflexes.
Eight of the 9 infants had loss of pharyngeal and laryngeal sensitivity leading to delays in initiation of the pharyngeal (or semiautomatic) swallowing phase and evidence that the swallowing reflex was triggered only when the bolus arrived on pyriform sinuses or the retrocricoid region, a delay that is associated with increased risk of aspiration before swallowing (Figure 2).
Their bodies are pyriform, widened behind and covered with short and loose bristles.
There are various morphologic forms such as pyriform (Tasca and De Carli, 2003) round, stalked amoeboid and bell-shaped amoeboid.
Direct laryngoscopy revealed a 2 cm submucosal mass in the left pyriform sinus.
subepidermal, Pulverulent; UREDINIOSPORES occurs in many shapes as spheroidal, oval, pyriform, sometimes sub-globular or irregular shapes and mostly with pigmented yellowish contents, some spores observed with flattened bases, (21-) 22.
A thorough clinical workup of all the patients was done (detailed history, general physical and systemic examination, complete nasal and paranasal sinuses examination, examination of ears, examination of larynx, external examination for obvious swelling, mobility of the laryngeal framework, laryngeal crepitus, tenderness, laryngeal expansion, and indirect laryngoscopy to examine posterior one-third of the tongue, valleculae, epiglottis, aryepiglottic folds, vestibular folds, vocal cords, pyriform fossae, and movements of the vocal cords).
2] The following symptoms were considered indicative of OPD: poor bolus formation, liquid spilling from the mouth, liquid adhering to the tongue or hard palate or that entered the sulci, piecemeal deglutition, delayed oral and/or pharyngeal transit time, aspiration before/after swallowing, pooling in the valleculae and pyriform sinuses and/ or pharyngeal recesses, velopharyngeal incoordination, reduced pharyngeal motility and laryngeal penetration.
Right-sided pyriform sinus fistula: A case report and review of the literature.