Definition of discoid in English:

discoid

adjective ˈdɪskɔɪdˈdɪskɔɪd

technical

Shaped like a disc.
Example sentencesExamples
- A further possibility is discoid lupus erythematosus, the technical term for an autoimmune dermatitis of dogs that is usually confined to the face and is frequently made worse by exposure to ultraviolet light.
- Platelet activation is observed as a morphological change from the resting discoid state to activated spherical cells with pseudopods.
- It has been reported that 20 percent of patients with systemic lupus erythematosus will develop discoid skin lesions; however, most patients who have only cutaneous lupus at presentation will not progress to systemic disease.
- Heads on discoid plants have an extra whorl of disc florets instead of ray florets.
- The distribution of psoriasis on extensor surfaces, scalp and natal cleft helps distinguish psoriasis from discoid eczema.
Synonyms
circular, disc-shaped, disc-like

noun ˈdɪskɔɪdˈdɪskɔɪd

A thing that is shaped like a disc, particularly a type of ancient stone tool.
Example sentencesExamples
- Most identification centres around inclusions zircon, glassy discoids which sometimes contain fern-like feathers and rutile crystals with blue halos.
- The stone tool assemblage includes convex end scrapers, bifacially-flaked small knives, and flattened discoids and microliths.
- Formal tools are rare but include scrapers, a discoid and two choppers.
- Eighty-nine were flaked-stone tools; the ninetieth was a carefully shaped discoid, perhaps a mano or grinding stone.
- Stone Age tools such as handaxes, cleavers, discoids and scrapers have been discovered in the region.

Derivatives

discoidal

adjective dɪˈskɔɪd(ə)ldɪˈskɔɪdl

A distinguishing feature of the echinoids is that the ossicles imbricate and are fused into a globular or discoidal test; its flattened or concave oral side faces the substratum and the aboral side is arched in most species.
Example sentencesExamples
- Of the five subphyla of the traditional scheme, the first is the Echinozoa, which are usually globose or discoidal in form.
- The calcite typically occurs as colorless to white discoidal crystals about 4 cm across; however, individual crystals to 30 cm are known.
- All known species of Capisocysta have a spheroidal rather than discoidal shape, and an equatorial flange is never present.
- The conch is thickly discoidal, with broadly convex sides and rounded venter with rounded ventral shoulders.

Origin

Late 18th century: from Greek diskoeidēs, from diskos (see discus).

Definition of discoid in US English:

discoid

adjectiveˈdɪskɔɪdˈdiskoid

technical

Shaped like a disc.
Example sentencesExamples
- A further possibility is discoid lupus erythematosus, the technical term for an autoimmune dermatitis of dogs that is usually confined to the face and is frequently made worse by exposure to ultraviolet light.
- Heads on discoid plants have an extra whorl of disc florets instead of ray florets.
- It has been reported that 20 percent of patients with systemic lupus erythematosus will develop discoid skin lesions; however, most patients who have only cutaneous lupus at presentation will not progress to systemic disease.
- The distribution of psoriasis on extensor surfaces, scalp and natal cleft helps distinguish psoriasis from discoid eczema.
- Platelet activation is observed as a morphological change from the resting discoid state to activated spherical cells with pseudopods.
Synonyms
circular, disc-shaped, disc-like

nounˈdɪskɔɪdˈdiskoid

A thing that is shaped like a disc, particularly a type of ancient stone tool.
Example sentencesExamples
- Most identification centres around inclusions zircon, glassy discoids which sometimes contain fern-like feathers and rutile crystals with blue halos.
- The stone tool assemblage includes convex end scrapers, bifacially-flaked small knives, and flattened discoids and microliths.
- Stone Age tools such as handaxes, cleavers, discoids and scrapers have been discovered in the region.
- Formal tools are rare but include scrapers, a discoid and two choppers.
- Eighty-nine were flaked-stone tools; the ninetieth was a carefully shaped discoid, perhaps a mano or grinding stone.

Origin

Late 18th century: from Greek diskoeidēs, from diskos (see discus).

单词	discoid
释义	Definition of discoid in English: discoid adjective ˈdɪskɔɪdˈdɪskɔɪd technical Shaped like a disc. Example sentencesExamples A further possibility is discoid lupus erythematosus, the technical term for an autoimmune dermatitis of dogs that is usually confined to the face and is frequently made worse by exposure to ultraviolet light. Platelet activation is observed as a morphological change from the resting discoid state to activated spherical cells with pseudopods. It has been reported that 20 percent of patients with systemic lupus erythematosus will develop discoid skin lesions; however, most patients who have only cutaneous lupus at presentation will not progress to systemic disease. Heads on discoid plants have an extra whorl of disc florets instead of ray florets. The distribution of psoriasis on extensor surfaces, scalp and natal cleft helps distinguish psoriasis from discoid eczema. Synonyms circular, disc-shaped, disc-like noun ˈdɪskɔɪdˈdɪskɔɪd A thing that is shaped like a disc, particularly a type of ancient stone tool. Example sentencesExamples Most identification centres around inclusions zircon, glassy discoids which sometimes contain fern-like feathers and rutile crystals with blue halos. The stone tool assemblage includes convex end scrapers, bifacially-flaked small knives, and flattened discoids and microliths. Formal tools are rare but include scrapers, a discoid and two choppers. Eighty-nine were flaked-stone tools; the ninetieth was a carefully shaped discoid, perhaps a mano or grinding stone. Stone Age tools such as handaxes, cleavers, discoids and scrapers have been discovered in the region. Derivatives discoidal adjective dɪˈskɔɪd(ə)ldɪˈskɔɪdl A distinguishing feature of the echinoids is that the ossicles imbricate and are fused into a globular or discoidal test; its flattened or concave oral side faces the substratum and the aboral side is arched in most species. Example sentencesExamples Of the five subphyla of the traditional scheme, the first is the Echinozoa, which are usually globose or discoidal in form. The calcite typically occurs as colorless to white discoidal crystals about 4 cm across; however, individual crystals to 30 cm are known. All known species of Capisocysta have a spheroidal rather than discoidal shape, and an equatorial flange is never present. The conch is thickly discoidal, with broadly convex sides and rounded venter with rounded ventral shoulders. Origin Late 18th century: from Greek diskoeidēs, from diskos (see discus). Definition of discoid in US English: discoid adjectiveˈdɪskɔɪdˈdiskoid technical Shaped like a disc. Example sentencesExamples A further possibility is discoid lupus erythematosus, the technical term for an autoimmune dermatitis of dogs that is usually confined to the face and is frequently made worse by exposure to ultraviolet light. Heads on discoid plants have an extra whorl of disc florets instead of ray florets. It has been reported that 20 percent of patients with systemic lupus erythematosus will develop discoid skin lesions; however, most patients who have only cutaneous lupus at presentation will not progress to systemic disease. The distribution of psoriasis on extensor surfaces, scalp and natal cleft helps distinguish psoriasis from discoid eczema. Platelet activation is observed as a morphological change from the resting discoid state to activated spherical cells with pseudopods. Synonyms circular, disc-shaped, disc-like nounˈdɪskɔɪdˈdiskoid A thing that is shaped like a disc, particularly a type of ancient stone tool. Example sentencesExamples Most identification centres around inclusions zircon, glassy discoids which sometimes contain fern-like feathers and rutile crystals with blue halos. The stone tool assemblage includes convex end scrapers, bifacially-flaked small knives, and flattened discoids and microliths. Stone Age tools such as handaxes, cleavers, discoids and scrapers have been discovered in the region. Formal tools are rare but include scrapers, a discoid and two choppers. Eighty-nine were flaked-stone tools; the ninetieth was a carefully shaped discoid, perhaps a mano or grinding stone. Origin Late 18th century: from Greek diskoeidēs, from diskos (see discus).
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