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| a gadget; dingus; thingumbob. |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
decidua de·cid·u·a (dĭ-sĭj'&oomacr;-ə)
n. pl. de·cid·u·as or de·cid·u·ae (-&oomacr;-ē')
A mucous membrane lining the uterus, modified during pregnancy and shed at parturition or during menstruation. Also called deciduous membrane.