The spelling of the word "stalked hydatid" can be explained using the International Phonetic Alphabet (IPA). The word is pronounced as /stɔkt hʌɪdəd/. The first syllable "stalked" is pronounced as /stɔkt/, where "o" is pronounced as "aw" and "k" and "t" are pronounced separately. The second word "hydatid" is pronounced as /hʌɪdəd/, with "h" as a voiceless glottal fricative sound, "y" as a voiced palatal approximant, and "d" pronounced twice in succession. Overall, the word "stalked hydatid" refers to a type of cyst formed by a tapeworm.
Stalked hydatid, also known as stalked hydroid, refers to a small marine invertebrate belonging to the class Hydrozoa. Hydrozoa is a group of predatory animals that typically inhabit marine environments, characterized by a hollow, tubular body structure. Stalked hydatids are colonial organisms that form colonies attached to the sea floor, rocks, or other substrates using an elongated structure called a stalk.
The main body of a stalked hydatid consists of a vase-shaped structure known as a hydranth, which functions as the feeding and reproductive unit. The hydranth has a central mouth surrounded by numerous tentacles, used to capture small prey, such as plankton and other microscopic organisms. Surrounding the hydranth are protective polyps known as hydrothecae, which form protective capsules for the buds that will develop into new individuals.
Stalked hydatids typically reproduce asexually through a process called budding, where new individuals, known as zooids, grow as extensions from the colony. These zooids eventually detach and become independent stalked hydatid colonies. In some cases, they can also reproduce sexually, releasing gametes into the water for fertilization.
Stalked hydatids are widespread and can be found in various marine habitats worldwide, from shallow waters to great depths. Although they may not be as well-known as other marine organisms, stalked hydatids play an important role in marine ecosystems by contributing to nutrient cycling and serving as a food source for other marine animals.
Appendix vesiculosus.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The term "stalked hydatid" refers to a medical condition known as "hydatid cyst". The word "hydatid" originates from the Greek word "hýdas", meaning "a watery vesicle" or "a cyst". The etymology can be traced back to the Greek word "hūdōr", which means "water". The term "stalked" refers to the presence of a stalk-like structure that connects the cyst to its surrounding tissue. So, "stalked hydatid" essentially means a cyst with a stalk or a pedunculated cyst.