\ˈɒpəkjˌʊləm], \ˈɒpəkjˌʊləm], \ˈɒ_p_ə_k_j_ˌʊ_l_ə_m]\
Definitions of OPERCULUM
- 2011 - English Dictionary Database
- 2010 - New Age Dictionary Database
- 1913 - Webster's Revised Unabridged Dictionary
- 1920 - A practical medical dictionary.
- 1898 - Warner's pocket medical dictionary of today.
- 1914 - Nuttall's Standard dictionary of the English language
- 1920 - A dictionary of scientific terms.
- 1846 - Medical lexicon: a dictionary of medical science
- 1898 - American pocket medical dictionary
- 1916 - Appleton's medical dictionary
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By DataStellar Co., Ltd
By Oddity Software
By Noah Webster.
1. Anything resembling a lid or cover. 2. specifically, in anatomy the overlapping portion of cerebral substance covering the insula; it is defined by different anatomists as consisting of from two to four portions (called operculum or frontoparietal operculum, post-operculum, preoperculum, and suboperculum or orbital operculum), separated from each other by branches of the fissure of Sylvius; called also o. insulae, Arnold's or Burdach's o. 3. In botany, the lid or cover of a capsule. 4. In parasitology, the lid or cover of a helminth egg. 5. A bit of mucus sealing the mouth of the uterus after conception has taken place.
By Stedman, Thomas Lathrop
By Nuttall, P.Austin.
A lid or flap, as in the capsules of Mosses ; any of the convolutions covering the island of Reil ; the lid-like structure seen in the Gastropods ; the movable plates in the shell of a Barnacle; the first pair of abdominal appendages in Limulus ; the gill-cover of Fishes ; the small plate covering the opening of a lung book in Spiders.
By Henderson, I. F.; Henderson, W. D.
By Robley Dunglison
By Willam Alexander Newman Dorland
Word of the day
beta Aspartic Acid
- An residue in chains that linked at beta-group instead normal, alpha-carboxyl group, polypeptide linkage. It is a result of the spontaneous decomposition aspartic acid or ASPARAGINE residues.