Ventricose
Swollen, distended, or inflated especially on one side
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Ventricose is an adjective describing the condition of a mushroom, gastropod or plant that it is "swollen, distended, or inflated especially on one side".[1]
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Mycology
Gastropods
In gastropods, if the shell of a snail is ventricose or subventricose, it means the whorl of the shell is swollen.